feat: update product analytic

Reviewed-on: #14

Makefile

@@ -83,6 +83,12 @@ migration-up:
 migration-down:
 	@migrate -database $(DB_URL) -path ./migrations down 1
 
+# Force migration to specific version
+
+.SILENT: migration-force
+migration-force:
+	@migrate -database $(DB_URL) -path ./migrations force $(version)
+
 .SILENT: seeder-create
 seeder-create:
 	@migrate create -ext sql -dir ./seeders -seq $(name)

internal/app/app.go

@@ -48,6 +48,7 @@ func (a *App) Initialize(cfg *config.Config) error {
 	// Initialize omset milestone scheduler
 	a.omsetScheduler = service.NewOmsetMilestoneScheduler(
 		repos.organizationRepo,
+		repos.outletRepo,
 		repos.userRepo,
 		processors.notificationProcessor,
 	)
@@ -135,15 +136,18 @@ func (a *App) Initialize(cfg *config.Config) error {
 		services.productOutletPriceService,
 		validators.productOutletPriceValidator,
 		selfOrderHandler,
+		services.expenseService,
+		validators.expenseValidator,
+		a.redisClient,
 	)
 
 	return nil
 }
 
 func (a *App) Start(port string) error {
-	// Start the omset milestone scheduler (checks every hour)
+	// Start the omset milestone scheduler (checks every 5 minutes for daily omset milestones)
 	if a.omsetScheduler != nil {
-		a.omsetScheduler.Start(1 * time.Hour)
+		a.omsetScheduler.Start(5 * time.Minute)
 	}
 
 	engine := a.router.Init()
@@ -236,6 +240,7 @@ type repositories struct {
 	notificationReceiverRepo       *repository.NotificationReceiverRepositoryImpl
 	notificationDeliveryRepo       *repository.NotificationDeliveryRepositoryImpl
 	productOutletPriceRepo         *repository.ProductOutletPriceRepositoryImpl
+	expenseRepo                    *repository.ExpenseRepositoryImpl
 }
 
 func (a *App) initRepositories() *repositories {
@@ -288,6 +293,7 @@ func (a *App) initRepositories() *repositories {
 		notificationReceiverRepo:       repository.NewNotificationReceiverRepository(a.db),
 		notificationDeliveryRepo:       repository.NewNotificationDeliveryRepository(a.db),
 		productOutletPriceRepo:         repository.NewProductOutletPriceRepositoryImpl(a.db),
+		expenseRepo:                    repository.NewExpenseRepositoryImpl(a.db),
 	}
 }
 
@@ -333,6 +339,7 @@ type processors struct {
 	userDeviceProcessor                 *processor.UserDeviceProcessorImpl
 	notificationProcessor               *processor.NotificationProcessorImpl
 	productOutletPriceProcessor         processor.ProductOutletPriceProcessor
+	expenseProcessor                    *processor.ExpenseProcessorImpl
 }
 
 func (a *App) initProcessors(cfg *config.Config, repos *repositories) *processors {
@@ -354,7 +361,7 @@ func (a *App) initProcessors(cfg *config.Config, repos *repositories) *processor
 		paymentMethodProcessor:              processor.NewPaymentMethodProcessorImpl(repos.paymentMethodRepo),
 		fileProcessor:                       processor.NewFileProcessorImpl(repos.fileRepo, fileClient),
 		customerProcessor:                   processor.NewCustomerProcessor(repos.customerRepo),
-		analyticsProcessor:                  processor.NewAnalyticsProcessorImpl(repos.analyticsRepo),
+		analyticsProcessor:                  processor.NewAnalyticsProcessorImpl(repos.analyticsRepo, repos.expenseRepo),
 		tableProcessor:                      processor.NewTableProcessor(repos.tableRepo, repos.orderRepo),
 		unitProcessor:                       processor.NewUnitProcessor(repos.unitRepo),
 		ingredientProcessor:                 processor.NewIngredientProcessor(repos.ingredientRepo, repos.unitRepo, repos.ingredientCompositionRepo),
@@ -383,6 +390,7 @@ func (a *App) initProcessors(cfg *config.Config, repos *repositories) *processor
 		userDeviceProcessor:                 processor.NewUserDeviceProcessorImpl(repos.userDeviceRepo),
 		notificationProcessor:               buildNotificationProcessor(cfg, repos),
 		productOutletPriceProcessor:         processor.NewProductOutletPriceProcessorImpl(repos.productOutletPriceRepo, repos.productRepo, repos.outletRepo),
+		expenseProcessor:                    processor.NewExpenseProcessorImpl(repos.expenseRepo),
 	}
 }
 
@@ -422,6 +430,7 @@ type services struct {
 	userDeviceService                 service.UserDeviceService
 	notificationService               service.NotificationService
 	productOutletPriceService         service.ProductOutletPriceService
+	expenseService                    *service.ExpenseServiceImpl
 }
 
 func (a *App) initServices(processors *processors, repos *repositories, cfg *config.Config) *services {
@@ -499,6 +508,7 @@ func (a *App) initServices(processors *processors, repos *repositories, cfg *con
 		userDeviceService:                 userDeviceService,
 		notificationService:               notificationService,
 		productOutletPriceService:         service.NewProductOutletPriceService(processors.productOutletPriceProcessor),
+		expenseService:                    service.NewExpenseService(processors.expenseProcessor),
 	}
 }
 
@@ -541,6 +551,7 @@ type validators struct {
 	userDeviceValidator                 *validator.UserDeviceValidatorImpl
 	notificationValidator               *validator.NotificationValidatorImpl
 	productOutletPriceValidator         *validator.ProductOutletPriceValidatorImpl
+	expenseValidator                    *validator.ExpenseValidatorImpl
 }
 
 func (a *App) initValidators() *validators {
@@ -571,6 +582,7 @@ func (a *App) initValidators() *validators {
 		userDeviceValidator:                 validator.NewUserDeviceValidator(),
 		notificationValidator:               validator.NewNotificationValidator(),
 		productOutletPriceValidator:         validator.NewProductOutletPriceValidator(),
+		expenseValidator:                    validator.NewExpenseValidator(),
 	}
 }
 

internal/constants/error.go

@@ -60,6 +60,7 @@ const (
 	NotificationServiceEntity       = "notification_service"
 	NotificationHandlerEntity       = "notification_handler"
 	ProductOutletPriceServiceEntity = "product_outlet_price_service"
+	ExpenseServiceEntity            = "expense_service"
 )
 
 var HttpErrorMap = map[string]int{

internal/constants/expense.go

@@ -0,0 +1,28 @@
+package constants
+
+type ExpenseStatus string
+
+const (
+	ExpenseStatusDraft    ExpenseStatus = "draft"
+	ExpenseStatusSent     ExpenseStatus = "sent"
+	ExpenseStatusApproved ExpenseStatus = "approved"
+	ExpenseStatusCancel   ExpenseStatus = "cancel"
+)
+
+func GetAllExpenseStatuses() []ExpenseStatus {
+	return []ExpenseStatus{
+		ExpenseStatusDraft,
+		ExpenseStatusSent,
+		ExpenseStatusApproved,
+		ExpenseStatusCancel,
+	}
+}
+
+func IsValidExpenseStatus(status ExpenseStatus) bool {
+	for _, validStatus := range GetAllExpenseStatuses() {
+		if status == validStatus {
+			return true
+		}
+	}
+	return false
+}

internal/contract/analytics_contract.go

@@ -162,6 +162,7 @@ type ProductAnalyticsData struct {
 	ProductID               uuid.UUID `json:"product_id"`
 	ProductName             string    `json:"product_name"`
 	ProductSku              string    `json:"product_sku"`
+	ProductPrice            float64   `json:"product_price"`
 	CategoryID              uuid.UUID `json:"category_id"`
 	CategoryName            string    `json:"category_name"`
 	CategoryOrder           int       `json:"category_order"`
@@ -236,7 +237,6 @@ type DashboardOverview struct {
 	RefundedOrders    int64   `json:"refunded_orders"`
 }
 
-// ProfitLossAnalyticsRequest represents the request for profit and loss analytics
 type ProfitLossAnalyticsRequest struct {
 	OrganizationID uuid.UUID
 	OutletID       *string `form:"outlet_id,omitempty"`
@@ -245,19 +245,20 @@ type ProfitLossAnalyticsRequest struct {
 	GroupBy        string  `form:"group_by,default=day" validate:"omitempty,oneof=day hour week month"`
 }
 
-// ProfitLossAnalyticsResponse represents the response for profit and loss analytics
 type ProfitLossAnalyticsResponse struct {
-	OrganizationID uuid.UUID           `json:"organization_id"`
-	OutletID       *uuid.UUID          `json:"outlet_id,omitempty"`
-	DateFrom       time.Time           `json:"date_from"`
-	DateTo         time.Time           `json:"date_to"`
-	GroupBy        string              `json:"group_by"`
-	Summary        ProfitLossSummary   `json:"summary"`
-	Data           []ProfitLossData    `json:"data"`
-	ProductData    []ProductProfitData `json:"product_data"`
+	OrganizationID           uuid.UUID                `json:"organization_id"`
+	OutletID                 *uuid.UUID               `json:"outlet_id,omitempty"`
+	DateFrom                 time.Time                `json:"date_from"`
+	DateTo                   time.Time                `json:"date_to"`
+	GroupBy                  string                   `json:"group_by"`
+	Summary                  ProfitLossSummary        `json:"summary"`
+	Data                     []ProfitLossData         `json:"data"`
+	ProductData              []ProductProfitData      `json:"product_data"`
+	MainSummary              []ProfitLossSummaryRow   `json:"main_summary"`
+	OperationalExpenses      []OperationalExpenseItem `json:"operational_expenses"`
+	OperationalExpensesTotal float64                  `json:"operational_expenses_total"`
 }
 
-// ProfitLossSummary represents the summary of profit and loss analytics
 type ProfitLossSummary struct {
 	TotalRevenue       float64 `json:"total_revenue"`
 	TotalCost          float64 `json:"total_cost"`
@@ -272,7 +273,6 @@ type ProfitLossSummary struct {
 	ProfitabilityRatio float64 `json:"profitability_ratio"`
 }
 
-// ProfitLossData represents individual profit and loss data point by time period
 type ProfitLossData struct {
 	Date              time.Time `json:"date"`
 	Revenue           float64   `json:"revenue"`
@@ -286,7 +286,6 @@ type ProfitLossData struct {
 	Orders            int64     `json:"orders"`
 }
 
-// ProductProfitData represents profit data for individual products
 type ProductProfitData struct {
 	ProductID         uuid.UUID `json:"product_id"`
 	ProductName       string    `json:"product_name"`
@@ -301,3 +300,19 @@ type ProductProfitData struct {
 	AverageCost       float64   `json:"average_cost"`
 	ProfitPerUnit     float64   `json:"profit_per_unit"`
 }
+
+type ProfitLossSummaryRow struct {
+	ID           string                 `json:"id"`
+	Label        string                 `json:"label"`
+	IsBold       bool                   `json:"is_bold"`
+	TodayNominal float64                `json:"today_nominal"`
+	TodayPct     float64                `json:"today_pct"`
+	MtdNominal   float64                `json:"mtd_nominal"`
+	MtdPct       float64                `json:"mtd_pct"`
+	SubItems     []ProfitLossSummaryRow `json:"sub_items,omitempty"`
+}
+
+type OperationalExpenseItem struct {
+	Item    string  `json:"item"`
+	Nominal float64 `json:"nominal"`
+}

internal/contract/category_contract.go

@@ -10,7 +10,8 @@ type CreateCategoryRequest struct {
 	Name         string                 `json:"name" validate:"required,min=1,max=255"`
 	Description  *string                `json:"description,omitempty"`
 	BusinessType *string                `json:"business_type,omitempty"`
-	Order 		 *int                	`json:"order,omitempty"`
+	OutletID     *uuid.UUID             `json:"outlet_id,omitempty"`
+	Order        *int                   `json:"order,omitempty"`
 	Metadata     map[string]interface{} `json:"metadata,omitempty"`
 }
 
@@ -18,12 +19,14 @@ type UpdateCategoryRequest struct {
 	Name         *string                `json:"name,omitempty" validate:"omitempty,min=1,max=255"`
 	Description  *string                `json:"description,omitempty"`
 	BusinessType *string                `json:"business_type,omitempty"`
-	Order 		 *int                	`json:"order,omitempty"`
+	OutletID     *uuid.UUID             `json:"outlet_id,omitempty"`
+	Order        *int                   `json:"order,omitempty"`
 	Metadata     map[string]interface{} `json:"metadata,omitempty"`
 }
 
 type ListCategoriesRequest struct {
 	OrganizationID *uuid.UUID `json:"organization_id,omitempty"`
+	OutletID       *uuid.UUID `json:"outlet_id,omitempty"`
 	BusinessType   string     `json:"business_type,omitempty"`
 	Search         string     `json:"search,omitempty"`
 	Page           int        `json:"page" validate:"required,min=1"`
@@ -34,10 +37,11 @@ type ListCategoriesRequest struct {
 type CategoryResponse struct {
 	ID             uuid.UUID              `json:"id"`
 	OrganizationID uuid.UUID              `json:"organization_id"`
+	OutletID       *uuid.UUID             `json:"outlet_id"`
 	Name           string                 `json:"name"`
 	Description    *string                `json:"description"`
 	BusinessType   string                 `json:"business_type"`
-	Order 		   int                	  `json:"order"`
+	Order          int                    `json:"order"`
 	Metadata       map[string]interface{} `json:"metadata"`
 	CreatedAt      time.Time              `json:"created_at"`
 	UpdatedAt      time.Time              `json:"updated_at"`

internal/contract/expense_contract.go

@@ -0,0 +1,93 @@
+package contract
+
+import (
+	"time"
+
+	"github.com/google/uuid"
+)
+
+type CreateExpenseRequest struct {
+	Receiver        string                     `json:"receiver" validate:"required"`
+	TransactionDate string                     `json:"transaction_date" validate:"required"`
+	CodeNumber      string                     `json:"code_number" validate:"required"`
+	OutletID        string                     `json:"outlet_id" validate:"required"`
+	Status          *string                    `json:"status,omitempty" validate:"omitempty,oneof=draft sent approved cancel"`
+	Description     *string                    `json:"description,omitempty"`
+	Tax             float64                    `json:"tax"`
+	Total           float64                    `json:"total" validate:"required"`
+	Items           []CreateExpenseItemRequest `json:"items" validate:"required"`
+}
+
+type CreateExpenseItemRequest struct {
+	ChartOfAccountID string  `json:"chart_of_account_id" validate:"required"`
+	Item             string  `json:"item" validate:"required"`
+	Description      *string `json:"description,omitempty"`
+	Amount           float64 `json:"amount" validate:"required"`
+}
+
+type UpdateExpenseRequest struct {
+	Receiver        *string                    `json:"receiver,omitempty"`
+	TransactionDate *string                    `json:"transaction_date,omitempty"`
+	CodeNumber      *string                    `json:"code_number,omitempty"`
+	OutletID        *string                    `json:"outlet_id,omitempty"`
+	Status          *string                    `json:"status,omitempty" validate:"omitempty,oneof=draft sent approved cancel"`
+	Description     *string                    `json:"description,omitempty"`
+	Tax             *float64                   `json:"tax,omitempty"`
+	Total           *float64                   `json:"total,omitempty"`
+	Reserved1       *string                    `json:"reserved1,omitempty"`
+	Items           []UpdateExpenseItemRequest `json:"items,omitempty"`
+}
+
+type UpdateExpenseItemRequest struct {
+	ChartOfAccountID *string  `json:"chart_of_account_id,omitempty"`
+	Item             *string  `json:"item,omitempty"`
+	Description      *string  `json:"description,omitempty"`
+	Amount           *float64 `json:"amount,omitempty"`
+}
+
+type ExpenseResponse struct {
+	ID              uuid.UUID             `json:"id"`
+	OrganizationID  uuid.UUID             `json:"organization_id"`
+	OutletID        uuid.UUID             `json:"outlet_id"`
+	Receiver        string                `json:"receiver"`
+	TransactionDate time.Time             `json:"transaction_date"`
+	CodeNumber      string                `json:"code_number"`
+	Status          string                `json:"status"`
+	Description     *string               `json:"description"`
+	Tax             float64               `json:"tax"`
+	Total           float64               `json:"total"`
+	Reserved1       *string               `json:"reserved1,omitempty"`
+	CreatedAt       time.Time             `json:"created_at"`
+	UpdatedAt       time.Time             `json:"updated_at"`
+	Items           []ExpenseItemResponse `json:"items,omitempty"`
+}
+
+type ExpenseItemResponse struct {
+	ID                 uuid.UUID `json:"id"`
+	ExpenseID          uuid.UUID `json:"expense_id"`
+	ChartOfAccountID   uuid.UUID `json:"chart_of_account_id"`
+	ChartOfAccountName string    `json:"chart_of_account_name,omitempty"`
+	Item               string    `json:"item"`
+	Description        *string   `json:"description"`
+	Amount             float64   `json:"amount"`
+	CreatedAt          time.Time `json:"created_at"`
+	UpdatedAt          time.Time `json:"updated_at"`
+}
+
+type ListExpenseRequest struct {
+	Page      int    `json:"page" validate:"min=1"`
+	Limit     int    `json:"limit" validate:"min=1,max=100"`
+	Search    string `json:"search,omitempty"`
+	OutletID  string `json:"outlet_id,omitempty"`
+	Status    string `json:"status,omitempty" validate:"omitempty,oneof=draft sent approved cancel"`
+	StartDate string `json:"start_date,omitempty"`
+	EndDate   string `json:"end_date,omitempty"`
+}
+
+type ListExpenseResponse struct {
+	Expenses   []ExpenseResponse `json:"expenses"`
+	TotalCount int               `json:"total_count"`
+	Page       int               `json:"page"`
+	Limit      int               `json:"limit"`
+	TotalPages int               `json:"total_pages"`
+}

internal/contract/order_contract.go

@@ -98,6 +98,8 @@ type OrderItemResponse struct {
 	ProductName        string                   `json:"product_name"`
 	ProductVariantID   *uuid.UUID               `json:"product_variant_id"`
 	ProductVariantName *string                  `json:"product_variant_name,omitempty"`
+	CategoryID         *uuid.UUID               `json:"category_id,omitempty"`
+	CategoryName       *string                  `json:"category_name,omitempty"`
 	Quantity           int                      `json:"quantity"`
 	UnitPrice          float64                  `json:"unit_price"`
 	TotalPrice         float64                  `json:"total_price"`
@@ -108,6 +110,7 @@ type OrderItemResponse struct {
 	CreatedAt          time.Time                `json:"created_at"`
 	UpdatedAt          time.Time                `json:"updated_at"`
 	PrinterType        string                   `json:"printer_type"`
+	PrintToChecker     bool                     `json:"print_to_checker"`
 	PaidQuantity       int                      `json:"paid_quantity"`
 }
 

internal/contract/product_contract.go

@@ -8,6 +8,7 @@ import (
 
 type CreateProductRequest struct {
 	CategoryID      uuid.UUID                     `json:"category_id" validate:"required"`
+	OutletID        *uuid.UUID                    `json:"outlet_id,omitempty"`
 	SKU             *string                       `json:"sku,omitempty"`
 	Name            string                        `json:"name" validate:"required,min=1,max=255"`
 	Description     *string                       `json:"description,omitempty"`
@@ -16,28 +17,30 @@ type CreateProductRequest struct {
 	BusinessType    *string                       `json:"business_type,omitempty"`
 	ImageURL        *string                       `json:"image_url,omitempty" validate:"omitempty,max=500"`
 	PrinterType     *string                       `json:"printer_type,omitempty" validate:"omitempty,max=50"`
+	PrintToChecker  *bool                         `json:"print_to_checker,omitempty"`
 	Metadata        map[string]interface{}        `json:"metadata,omitempty"`
 	IsActive        *bool                         `json:"is_active,omitempty"`
 	Variants        []CreateProductVariantRequest `json:"variants,omitempty"`
-	InitialStock    *int                          `json:"initial_stock,omitempty" validate:"omitempty,min=0"` // Initial stock quantity for all outlets
-	ReorderLevel    *int                          `json:"reorder_level,omitempty" validate:"omitempty,min=0"` // Reorder level for all outlets
-	CreateInventory bool                          `json:"create_inventory,omitempty"`                         // Whether to create inventory records for all outlets
+	InitialStock    *int                          `json:"initial_stock,omitempty" validate:"omitempty,min=0"`
+	ReorderLevel    *int                          `json:"reorder_level,omitempty" validate:"omitempty,min=0"`
+	CreateInventory bool                          `json:"create_inventory,omitempty"`
 }
 
 type UpdateProductRequest struct {
-	CategoryID   *uuid.UUID             `json:"category_id,omitempty"`
-	SKU          *string                `json:"sku,omitempty"`
-	Name         *string                `json:"name,omitempty" validate:"omitempty,min=1,max=255"`
-	Description  *string                `json:"description,omitempty"`
-	Price        *float64               `json:"price,omitempty" validate:"omitempty,min=0"`
-	Cost         *float64               `json:"cost,omitempty" validate:"omitempty,min=0"`
-	BusinessType *string                `json:"business_type,omitempty"`
-	ImageURL     *string                `json:"image_url,omitempty" validate:"omitempty,max=500"`
-	PrinterType  *string                `json:"printer_type,omitempty" validate:"omitempty,max=50"`
-	Metadata     map[string]interface{} `json:"metadata,omitempty"`
-	IsActive     *bool                  `json:"is_active,omitempty"`
-	// Stock management fields
-	ReorderLevel *int `json:"reorder_level,omitempty" validate:"omitempty,min=0"` // Update reorder level for all existing inventory records
+	OutletID       *uuid.UUID             `json:"outlet_id,omitempty"`
+	CategoryID     *uuid.UUID             `json:"category_id,omitempty"`
+	SKU            *string                `json:"sku,omitempty"`
+	Name           *string                `json:"name,omitempty" validate:"omitempty,min=1,max=255"`
+	Description    *string                `json:"description,omitempty"`
+	Price          *float64               `json:"price,omitempty" validate:"omitempty,min=0"`
+	Cost           *float64               `json:"cost,omitempty" validate:"omitempty,min=0"`
+	BusinessType   *string                `json:"business_type,omitempty"`
+	ImageURL       *string                `json:"image_url,omitempty" validate:"omitempty,max=500"`
+	PrinterType    *string                `json:"printer_type,omitempty" validate:"omitempty,max=50"`
+	PrintToChecker *bool                  `json:"print_to_checker,omitempty"`
+	Metadata       map[string]interface{} `json:"metadata,omitempty"`
+	IsActive       *bool                  `json:"is_active,omitempty"`
+	ReorderLevel   *int                   `json:"reorder_level,omitempty" validate:"omitempty,min=0"`
 }
 
 type CreateProductVariantRequest struct {
@@ -70,6 +73,7 @@ type ProductResponse struct {
 	BusinessType   string                       `json:"business_type"`
 	ImageURL       *string                      `json:"image_url"`
 	PrinterType    string                       `json:"printer_type"`
+	PrintToChecker bool                         `json:"print_to_checker"`
 	Metadata       map[string]interface{}       `json:"metadata"`
 	IsActive       bool                         `json:"is_active"`
 	CreatedAt      time.Time                    `json:"created_at"`

internal/contract/product_outlet_price_contract.go

@@ -7,23 +7,26 @@ import (
 )
 
 type CreateProductOutletPriceRequest struct {
-	ProductID uuid.UUID `json:"product_id" validate:"required"`
-	OutletID  uuid.UUID `json:"outlet_id" validate:"required"`
-	Price     float64   `json:"price" validate:"required,min=0"`
+	ProductID      uuid.UUID `json:"product_id" validate:"required"`
+	OutletID       uuid.UUID `json:"outlet_id" validate:"required"`
+	Price          float64   `json:"price" validate:"required,min=0"`
+	PrintToChecker bool      `json:"print_to_checker"`
 }
 
 type UpdateProductOutletPriceRequest struct {
-	Price float64 `json:"price" validate:"required,min=0"`
+	Price          float64 `json:"price" validate:"required,min=0"`
+	PrintToChecker *bool   `json:"print_to_checker"`
 }
 
 type ProductOutletPriceResponse struct {
-	ID         uuid.UUID `json:"id,omitempty"`
-	ProductID  uuid.UUID `json:"product_id,omitempty"`
-	OutletID   uuid.UUID `json:"outlet_id"`
-	OutletName string    `json:"outlet_name,omitempty"`
-	Price      float64   `json:"price"`
-	CreatedAt  time.Time `json:"created_at,omitempty"`
-	UpdatedAt  time.Time `json:"updated_at,omitempty"`
+	ID             uuid.UUID `json:"id,omitempty"`
+	ProductID      uuid.UUID `json:"product_id,omitempty"`
+	OutletID       uuid.UUID `json:"outlet_id"`
+	OutletName     string    `json:"outlet_name,omitempty"`
+	Price          float64   `json:"price"`
+	PrintToChecker bool      `json:"print_to_checker"`
+	CreatedAt      time.Time `json:"created_at,omitempty"`
+	UpdatedAt      time.Time `json:"updated_at,omitempty"`
 }
 
 type ListProductOutletPricesResponse struct {
@@ -37,6 +40,7 @@ type BulkCreateProductOutletPriceRequest struct {
 }
 
 type CreateProductOutletPricePerOutletRequest struct {
-	OutletID uuid.UUID `json:"outlet_id" validate:"required"`
-	Price    float64   `json:"price" validate:"required,min=0"`
+	OutletID       uuid.UUID `json:"outlet_id" validate:"required"`
+	Price          float64   `json:"price" validate:"required,min=0"`
+	PrintToChecker bool      `json:"print_to_checker"`
 }

internal/contract/purchase_order_contract.go

@@ -9,8 +9,8 @@ import (
 type CreatePurchaseOrderRequest struct {
 	VendorID          uuid.UUID                        `json:"vendor_id" validate:"required"`
 	PONumber          string                           `json:"po_number" validate:"required,min=1,max=50"`
-	TransactionDate   string                           `json:"transaction_date" validate:"required"` // Format: YYYY-MM-DD
-	DueDate           string                           `json:"due_date" validate:"required"`          // Format: YYYY-MM-DD
+	TransactionDate   string                           `json:"transaction_date" validate:"required"`    // Format: YYYY-MM-DD
+	DueDate           *string                          `json:"due_date,omitempty" validate:"omitempty"` // Format: YYYY-MM-DD
 	Reference         *string                          `json:"reference,omitempty" validate:"omitempty,max=100"`
 	Status            *string                          `json:"status,omitempty" validate:"omitempty,oneof=draft sent approved received cancelled"`
 	Message           *string                          `json:"message,omitempty" validate:"omitempty"`
@@ -30,7 +30,7 @@ type UpdatePurchaseOrderRequest struct {
 	VendorID          *uuid.UUID                       `json:"vendor_id,omitempty" validate:"omitempty"`
 	PONumber          *string                          `json:"po_number,omitempty" validate:"omitempty,min=1,max=50"`
 	TransactionDate   *string                          `json:"transaction_date,omitempty" validate:"omitempty"` // Format: YYYY-MM-DD
-	DueDate           *string                          `json:"due_date,omitempty" validate:"omitempty"`          // Format: YYYY-MM-DD
+	DueDate           *string                          `json:"due_date,omitempty" validate:"omitempty"`         // Format: YYYY-MM-DD
 	Reference         *string                          `json:"reference,omitempty" validate:"omitempty,max=100"`
 	Status            *string                          `json:"status,omitempty" validate:"omitempty,oneof=draft sent approved received cancelled"`
 	Message           *string                          `json:"message,omitempty" validate:"omitempty"`
@@ -53,7 +53,7 @@ type PurchaseOrderResponse struct {
 	VendorID        uuid.UUID                         `json:"vendor_id"`
 	PONumber        string                            `json:"po_number"`
 	TransactionDate time.Time                         `json:"transaction_date"`
-	DueDate         time.Time                         `json:"due_date"`
+	DueDate         *time.Time                        `json:"due_date"`
 	Reference       *string                           `json:"reference"`
 	Status          string                            `json:"status"`
 	Message         *string                           `json:"message"`

internal/entities/analytics.go

@@ -76,6 +76,7 @@ type ProductAnalytics struct {
 	ProductID               uuid.UUID `json:"product_id"`
 	ProductName             string    `json:"product_name"`
 	ProductSku              string    `json:"product_sku"`
+	ProductPrice            float64   `json:"product_price"`
 	CategoryID              uuid.UUID `json:"category_id"`
 	CategoryName            string    `json:"category_name"`
 	CategoryOrder           int       `json:"category_order"`
@@ -113,54 +114,67 @@ type DashboardOverview struct {
 	RefundedOrders    int64   `json:"refunded_orders"`
 }
 
-// ProfitLossAnalytics represents profit and loss analytics data
 type ProfitLossAnalytics struct {
-	Summary     ProfitLossSummary   `json:"summary"`
-	Data        []ProfitLossData    `json:"data"`
-	ProductData []ProductProfitData `json:"product_data"`
+	Summary                 ProfitLossSummary
+	Data                    []ProfitLossData
+	ProductData             []ProductProfitData
+	TodayRevenue            float64
+	TodayCost               float64
+	MtdRevenue              float64
+	MtdCost                 float64
+	TodayExpenseByCategory  []ExpenseCategoryTotal
+	MtdExpenseByCategory    []ExpenseCategoryTotal
+	OperationalExpenseItems []OperationalExpenseItem
 }
 
-// ProfitLossSummary represents profit and loss summary data
 type ProfitLossSummary struct {
-	TotalRevenue       float64 `json:"total_revenue"`
-	TotalCost          float64 `json:"total_cost"`
-	GrossProfit        float64 `json:"gross_profit"`
-	GrossProfitMargin  float64 `json:"gross_profit_margin"`
-	TotalTax           float64 `json:"total_tax"`
-	TotalDiscount      float64 `json:"total_discount"`
-	NetProfit          float64 `json:"net_profit"`
-	NetProfitMargin    float64 `json:"net_profit_margin"`
-	TotalOrders        int64   `json:"total_orders"`
-	AverageProfit      float64 `json:"average_profit"`
-	ProfitabilityRatio float64 `json:"profitability_ratio"`
+	TotalRevenue       float64
+	TotalCost          float64
+	GrossProfit        float64
+	GrossProfitMargin  float64
+	TotalTax           float64
+	TotalDiscount      float64
+	NetProfit          float64
+	NetProfitMargin    float64
+	TotalOrders        int64
+	AverageProfit      float64
+	ProfitabilityRatio float64
 }
 
-// ProfitLossData represents profit and loss data by time period
 type ProfitLossData struct {
-	Date              time.Time `json:"date"`
-	Revenue           float64   `json:"revenue"`
-	Cost              float64   `json:"cost"`
-	GrossProfit       float64   `json:"gross_profit"`
-	GrossProfitMargin float64   `json:"gross_profit_margin"`
-	Tax               float64   `json:"tax"`
-	Discount          float64   `json:"discount"`
-	NetProfit         float64   `json:"net_profit"`
-	NetProfitMargin   float64   `json:"net_profit_margin"`
-	Orders            int64     `json:"orders"`
+	Date              time.Time
+	Revenue           float64
+	Cost              float64
+	GrossProfit       float64
+	GrossProfitMargin float64
+	Tax               float64
+	Discount          float64
+	NetProfit         float64
+	NetProfitMargin   float64
+	Orders            int64
 }
 
-// ProductProfitData represents profit data for individual products
 type ProductProfitData struct {
-	ProductID         uuid.UUID `json:"product_id"`
-	ProductName       string    `json:"product_name"`
-	CategoryID        uuid.UUID `json:"category_id"`
-	CategoryName      string    `json:"category_name"`
-	QuantitySold      int64     `json:"quantity_sold"`
-	Revenue           float64   `json:"revenue"`
-	Cost              float64   `json:"cost"`
-	GrossProfit       float64   `json:"gross_profit"`
-	GrossProfitMargin float64   `json:"gross_profit_margin"`
-	AveragePrice      float64   `json:"average_price"`
-	AverageCost       float64   `json:"average_cost"`
-	ProfitPerUnit     float64   `json:"profit_per_unit"`
+	ProductID         uuid.UUID
+	ProductName       string
+	CategoryID        uuid.UUID
+	CategoryName      string
+	QuantitySold      int64
+	Revenue           float64
+	Cost              float64
+	GrossProfit       float64
+	GrossProfitMargin float64
+	AveragePrice      float64
+	AverageCost       float64
+	ProfitPerUnit     float64
+}
+
+type ExpenseCategoryTotal struct {
+	CategoryName string
+	Amount       float64
+}
+
+type OperationalExpenseItem struct {
+	Item   string
+	Amount float64
 }

internal/entities/category.go

@@ -31,15 +31,16 @@ func (m *Metadata) Scan(value interface{}) error {
 }
 
 type Category struct {
-	ID             uuid.UUID `gorm:"type:uuid;primary_key;default:gen_random_uuid()" json:"id"`
-	OrganizationID uuid.UUID `gorm:"type:uuid;not null;index" json:"organization_id" validate:"required"`
-	Name           string    `gorm:"not null;size:255" json:"name" validate:"required,min=1,max=255"`
-	Description    *string   `gorm:"type:text" json:"description"`
-	Order    	   int  	 `gorm:"default:0" json:"order"`
-	BusinessType   string    `gorm:"size:50;default:'restaurant'" json:"business_type"`
-	Metadata       Metadata  `gorm:"type:jsonb;default:'{}'" json:"metadata"`
-	CreatedAt      time.Time `gorm:"autoCreateTime" json:"created_at"`
-	UpdatedAt      time.Time `gorm:"autoUpdateTime" json:"updated_at"`
+	ID             uuid.UUID  `gorm:"type:uuid;primary_key;default:gen_random_uuid()" json:"id"`
+	OrganizationID uuid.UUID  `gorm:"type:uuid;not null;index" json:"organization_id" validate:"required"`
+	OutletID       *uuid.UUID `gorm:"type:uuid;index" json:"outlet_id"`
+	Name           string     `gorm:"not null;size:255" json:"name" validate:"required,min=1,max=255"`
+	Description    *string    `gorm:"type:text" json:"description"`
+	Order          int        `gorm:"default:0" json:"order"`
+	BusinessType   string     `gorm:"size:50;default:'restaurant'" json:"business_type"`
+	Metadata       Metadata   `gorm:"type:jsonb;default:'{}'" json:"metadata"`
+	CreatedAt      time.Time  `gorm:"autoCreateTime" json:"created_at"`
+	UpdatedAt      time.Time  `gorm:"autoUpdateTime" json:"updated_at"`
 
 	Organization Organization `gorm:"foreignKey:OrganizationID" json:"organization,omitempty"`
 	Products     []Product    `gorm:"foreignKey:CategoryID" json:"products,omitempty"`

internal/entities/entities.go

@@ -42,6 +42,7 @@ func GetAllEntities() []interface{} {
 		&NotificationReceiver{},
 		&NotificationDelivery{},
 		&ProductOutletPrice{},
+		&Expense{},
 	}
 }
 

internal/entities/expense.go

@@ -0,0 +1,40 @@
+package entities
+
+import (
+	"time"
+
+	"github.com/google/uuid"
+
+	"gorm.io/gorm"
+)
+
+type Expense struct {
+	ID              uuid.UUID `gorm:"type:uuid;primary_key;default:gen_random_uuid()" json:"id"`
+	OrganizationID  uuid.UUID `gorm:"type:uuid;not null;index" json:"organization_id"`
+	OutletID        uuid.UUID `gorm:"type:uuid;not null;index" json:"outlet_id"`
+	Receiver        string    `gorm:"not null;size:255" json:"receiver"`
+	TransactionDate time.Time `gorm:"type:date;not null" json:"transaction_date"`
+	CodeNumber      string    `gorm:"not null;size:50" json:"code_number"`
+	Status          string    `gorm:"not null;size:20;default:'draft'" json:"status"`
+	Description     *string   `gorm:"type:text" json:"description"`
+	Tax             float64   `gorm:"type:decimal(15,2);not null;default:0" json:"tax"`
+	Total           float64   `gorm:"type:decimal(15,2);not null;default:0" json:"total"`
+	Reserved1       *string   `gorm:"type:text" json:"reserved1"`
+	CreatedAt       time.Time `gorm:"autoCreateTime" json:"created_at"`
+	UpdatedAt       time.Time `gorm:"autoUpdateTime" json:"updated_at"`
+
+	Organization *Organization `gorm:"foreignKey:OrganizationID" json:"organization,omitempty"`
+	Outlet       *Outlet       `gorm:"foreignKey:OutletID" json:"outlet,omitempty"`
+	Items        []ExpenseItem `gorm:"foreignKey:ExpenseID" json:"items,omitempty"`
+}
+
+func (e *Expense) BeforeCreate(tx *gorm.DB) error {
+	if e.ID == uuid.Nil {
+		e.ID = uuid.New()
+	}
+	return nil
+}
+
+func (Expense) TableName() string {
+	return "expenses"
+}

internal/entities/expense_item.go

@@ -0,0 +1,34 @@
+package entities
+
+import (
+	"time"
+
+	"github.com/google/uuid"
+
+	"gorm.io/gorm"
+)
+
+type ExpenseItem struct {
+	ID               uuid.UUID `gorm:"type:uuid;primary_key;default:gen_random_uuid()" json:"id"`
+	ExpenseID        uuid.UUID `gorm:"type:uuid;not null;index" json:"expense_id"`
+	ChartOfAccountID uuid.UUID `gorm:"type:uuid;not null;index" json:"chart_of_account_id"`
+	Item             string    `gorm:"not null;size:255" json:"item"`
+	Description      *string   `gorm:"type:text" json:"description"`
+	Amount           float64   `gorm:"type:decimal(15,2);not null;default:0" json:"amount"`
+	CreatedAt        time.Time `gorm:"autoCreateTime" json:"created_at"`
+	UpdatedAt        time.Time `gorm:"autoUpdateTime" json:"updated_at"`
+
+	Expense        *Expense        `gorm:"foreignKey:ExpenseID" json:"expense,omitempty"`
+	ChartOfAccount *ChartOfAccount `gorm:"foreignKey:ChartOfAccountID" json:"chart_of_account,omitempty"`
+}
+
+func (e *ExpenseItem) BeforeCreate(tx *gorm.DB) error {
+	if e.ID == uuid.Nil {
+		e.ID = uuid.New()
+	}
+	return nil
+}
+
+func (ExpenseItem) TableName() string {
+	return "expense_items"
+}

internal/entities/product.go

@@ -26,13 +26,14 @@ type Product struct {
 	CreatedAt      time.Time  `gorm:"autoCreateTime" json:"created_at"`
 	UpdatedAt      time.Time  `gorm:"autoUpdateTime" json:"updated_at"`
 
-	Organization    Organization     `gorm:"foreignKey:OrganizationID" json:"organization,omitempty"`
-	Category        Category         `gorm:"foreignKey:CategoryID" json:"category,omitempty"`
-	Unit            *Unit            `gorm:"foreignKey:UnitID" json:"unit,omitempty"`
-	ProductVariants []ProductVariant `gorm:"foreignKey:ProductID" json:"variants,omitempty"`
-	ProductRecipes  []ProductRecipe  `gorm:"foreignKey:ProductID" json:"product_recipes,omitempty"`
-	Inventory       []Inventory      `gorm:"foreignKey:ProductID" json:"inventory,omitempty"`
-	OrderItems      []OrderItem      `gorm:"foreignKey:ProductID" json:"order_items,omitempty"`
+	Organization        Organization         `gorm:"foreignKey:OrganizationID" json:"organization,omitempty"`
+	Category            Category             `gorm:"foreignKey:CategoryID" json:"category,omitempty"`
+	Unit                *Unit                `gorm:"foreignKey:UnitID" json:"unit,omitempty"`
+	ProductVariants     []ProductVariant     `gorm:"foreignKey:ProductID" json:"variants,omitempty"`
+	ProductRecipes      []ProductRecipe      `gorm:"foreignKey:ProductID" json:"product_recipes,omitempty"`
+	Inventory           []Inventory          `gorm:"foreignKey:ProductID" json:"inventory,omitempty"`
+	OrderItems          []OrderItem          `gorm:"foreignKey:ProductID" json:"order_items,omitempty"`
+	ProductOutletPrices []ProductOutletPrice `gorm:"foreignKey:ProductID" json:"product_outlet_prices,omitempty"`
 }
 
 func (p *Product) BeforeCreate(tx *gorm.DB) error {

internal/entities/product_outlet_price.go

@@ -8,12 +8,13 @@ import (
 )
 
 type ProductOutletPrice struct {
-	ID        uuid.UUID `gorm:"type:uuid;primary_key;default:gen_random_uuid()" json:"id"`
-	ProductID uuid.UUID `gorm:"type:uuid;not null;index" json:"product_id"`
-	OutletID  uuid.UUID `gorm:"type:uuid;not null;index" json:"outlet_id"`
-	Price     float64   `gorm:"type:decimal(10,2);not null" json:"price"`
-	CreatedAt time.Time `gorm:"autoCreateTime" json:"created_at"`
-	UpdatedAt time.Time `gorm:"autoUpdateTime" json:"updated_at"`
+	ID             uuid.UUID `gorm:"type:uuid;primary_key;default:gen_random_uuid()" json:"id"`
+	ProductID      uuid.UUID `gorm:"type:uuid;not null;index" json:"product_id"`
+	OutletID       uuid.UUID `gorm:"type:uuid;not null;index" json:"outlet_id"`
+	Price          float64   `gorm:"type:decimal(10,2);not null" json:"price"`
+	PrintToChecker bool      `gorm:"not null;default:true" json:"print_to_checker"`
+	CreatedAt      time.Time `gorm:"autoCreateTime" json:"created_at"`
+	UpdatedAt      time.Time `gorm:"autoUpdateTime" json:"updated_at"`
 
 	Product Product `gorm:"foreignKey:ProductID" json:"product,omitempty"`
 	Outlet  Outlet  `gorm:"foreignKey:OutletID" json:"outlet,omitempty"`

internal/entities/purchase_order.go

@@ -9,18 +9,18 @@ import (
 )
 
 type PurchaseOrder struct {
-	ID              uuid.UUID `gorm:"type:uuid;primary_key;default:gen_random_uuid()" json:"id"`
-	OrganizationID  uuid.UUID `gorm:"type:uuid;not null" json:"organization_id" validate:"required"`
-	VendorID        uuid.UUID `gorm:"type:uuid;not null" json:"vendor_id" validate:"required"`
-	PONumber        string    `gorm:"not null;size:50" json:"po_number" validate:"required,min=1,max=50"`
-	TransactionDate time.Time `gorm:"type:date;not null" json:"transaction_date" validate:"required"`
-	DueDate         time.Time `gorm:"type:date;not null" json:"due_date" validate:"required"`
-	Reference       *string   `gorm:"size:100" json:"reference" validate:"omitempty,max=100"`
-	Status          string    `gorm:"not null;size:20;default:'draft'" json:"status" validate:"required,oneof=draft sent approved received cancelled"`
-	Message         *string   `gorm:"type:text" json:"message" validate:"omitempty"`
-	TotalAmount     float64   `gorm:"type:decimal(15,2);not null;default:0" json:"total_amount"`
-	CreatedAt       time.Time `gorm:"autoCreateTime" json:"created_at"`
-	UpdatedAt       time.Time `gorm:"autoUpdateTime" json:"updated_at"`
+	ID              uuid.UUID  `gorm:"type:uuid;primary_key;default:gen_random_uuid()" json:"id"`
+	OrganizationID  uuid.UUID  `gorm:"type:uuid;not null" json:"organization_id" validate:"required"`
+	VendorID        uuid.UUID  `gorm:"type:uuid;not null" json:"vendor_id" validate:"required"`
+	PONumber        string     `gorm:"not null;size:50" json:"po_number" validate:"required,min=1,max=50"`
+	TransactionDate time.Time  `gorm:"type:date;not null" json:"transaction_date" validate:"required"`
+	DueDate         *time.Time `gorm:"type:date" json:"due_date" validate:"omitempty"`
+	Reference       *string    `gorm:"size:100" json:"reference" validate:"omitempty,max=100"`
+	Status          string     `gorm:"not null;size:20;default:'draft'" json:"status" validate:"required,oneof=draft sent approved received cancelled"`
+	Message         *string    `gorm:"type:text" json:"message" validate:"omitempty"`
+	TotalAmount     float64    `gorm:"type:decimal(15,2);not null;default:0" json:"total_amount"`
+	CreatedAt       time.Time  `gorm:"autoCreateTime" json:"created_at"`
+	UpdatedAt       time.Time  `gorm:"autoUpdateTime" json:"updated_at"`
 
 	Organization *Organization             `gorm:"foreignKey:OrganizationID" json:"organization,omitempty"`
 	Vendor       *Vendor                   `gorm:"foreignKey:VendorID" json:"vendor,omitempty"`

internal/handler/category_handler.go

@@ -36,7 +36,7 @@ func (h *CategoryHandler) CreateCategory(c *gin.Context) {
 	contextInfo := appcontext.FromGinContext(ctx)
 
 	var req contract.CreateCategoryRequest
-		fmt.Printf("CategoryHandler::CreateCategory -> Request: %+v\n", req)
+	fmt.Printf("CategoryHandler::CreateCategory -> Request: %+v\n", req)
 	if err := c.ShouldBindJSON(&req); err != nil {
 		logger.FromContext(c.Request.Context()).WithError(err).Error("CategoryHandler::CreateCategory -> request binding failed")
 		validationResponseError := contract.NewResponseError(constants.MissingFieldErrorCode, constants.RequestEntity, err.Error())
@@ -44,6 +44,11 @@ func (h *CategoryHandler) CreateCategory(c *gin.Context) {
 		return
 	}
 
+	// Inject outlet_id from context if user has one and request doesn't provide it
+	if req.OutletID == nil && contextInfo.OutletID != uuid.Nil {
+		req.OutletID = &contextInfo.OutletID
+	}
+
 	validationError, validationErrorCode := h.categoryValidator.ValidateCreateCategoryRequest(&req)
 	if validationError != nil {
 		validationResponseError := contract.NewResponseError(validationErrorCode, constants.RequestEntity, validationError.Error())
@@ -149,6 +154,11 @@ func (h *CategoryHandler) ListCategories(c *gin.Context) {
 		OrganizationID: &contextInfo.OrganizationID,
 	}
 
+	// Inject outlet_id from context if user has one
+	if contextInfo.OutletID != uuid.Nil {
+		req.OutletID = &contextInfo.OutletID
+	}
+
 	// Parse query parameters
 	if pageStr := c.Query("page"); pageStr != "" {
 		if page, err := strconv.Atoi(pageStr); err == nil {
@@ -176,6 +186,11 @@ func (h *CategoryHandler) ListCategories(c *gin.Context) {
 		}
 	}
 
+	if outletIDStr := c.Query("outlet_id"); outletIDStr != "" {
+		if outletID, err := uuid.Parse(outletIDStr); err == nil {
+			req.OutletID = &outletID
+		}
+	}
 	validationError, validationErrorCode := h.categoryValidator.ValidateListCategoriesRequest(req)
 	if validationError != nil {
 		logger.FromContext(ctx).WithError(validationError).Error("CategoryHandler::ListCategories -> request validation failed")

internal/handler/common.go

@@ -1,6 +1,8 @@
 package handler
 
 import (
+	"apskel-pos-be/internal/logger"
+	"fmt"
 	"net/http"
 	"time"
 )
@@ -47,7 +49,7 @@ func (m *CommonMiddleware) Recovery(next http.Handler) http.Handler {
 	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
 		defer func() {
 			if err := recover(); err != nil {
-
+				logger.FromContext(r.Context()).Error("Recovery", fmt.Sprintf("panic recovered: %v", err))
 				http.Error(w, "Internal Server Error", http.StatusInternalServerError)
 			}
 		}()

internal/handler/expense_handler.go

@@ -0,0 +1,201 @@
+package handler
+
+import (
+	"apskel-pos-be/internal/appcontext"
+	"apskel-pos-be/internal/util"
+	"strconv"
+
+	"apskel-pos-be/internal/constants"
+	"apskel-pos-be/internal/contract"
+	"apskel-pos-be/internal/logger"
+	"apskel-pos-be/internal/service"
+	"apskel-pos-be/internal/validator"
+
+	"github.com/gin-gonic/gin"
+	"github.com/google/uuid"
+)
+
+type ExpenseHandler struct {
+	expenseService   service.ExpenseService
+	expenseValidator validator.ExpenseValidator
+}
+
+func NewExpenseHandler(
+	expenseService service.ExpenseService,
+	expenseValidator validator.ExpenseValidator,
+) *ExpenseHandler {
+	return &ExpenseHandler{
+		expenseService:   expenseService,
+		expenseValidator: expenseValidator,
+	}
+}
+
+func (h *ExpenseHandler) CreateExpense(c *gin.Context) {
+	ctx := c.Request.Context()
+	contextInfo := appcontext.FromGinContext(ctx)
+
+	var req contract.CreateExpenseRequest
+	if err := c.ShouldBindJSON(&req); err != nil {
+		logger.FromContext(ctx).WithError(err).Error("ExpenseHandler::CreateExpense -> request binding failed")
+		validationResponseError := contract.NewResponseError(constants.MissingFieldErrorCode, constants.RequestEntity, err.Error())
+		util.HandleResponse(c.Writer, c.Request, contract.BuildErrorResponse([]*contract.ResponseError{validationResponseError}), "ExpenseHandler::CreateExpense")
+		return
+	}
+
+	validationError, validationErrorCode := h.expenseValidator.ValidateCreateExpenseRequest(&req)
+	if validationError != nil {
+		validationResponseError := contract.NewResponseError(validationErrorCode, constants.RequestEntity, validationError.Error())
+		util.HandleResponse(c.Writer, c.Request, contract.BuildErrorResponse([]*contract.ResponseError{validationResponseError}), "ExpenseHandler::CreateExpense")
+		return
+	}
+
+	expenseResponse := h.expenseService.CreateExpense(ctx, contextInfo, &req)
+	if expenseResponse.HasErrors() {
+		errorResp := expenseResponse.GetErrors()[0]
+		logger.FromContext(ctx).WithError(errorResp).Error("ExpenseHandler::CreateExpense -> Failed to create expense from service")
+	}
+
+	util.HandleResponse(c.Writer, c.Request, expenseResponse, "ExpenseHandler::CreateExpense")
+}
+
+func (h *ExpenseHandler) UpdateExpense(c *gin.Context) {
+	ctx := c.Request.Context()
+	contextInfo := appcontext.FromGinContext(ctx)
+
+	expenseIDStr := c.Param("id")
+	expenseID, err := uuid.Parse(expenseIDStr)
+	if err != nil {
+		logger.FromContext(ctx).WithError(err).Error("ExpenseHandler::UpdateExpense -> Invalid expense ID")
+		validationResponseError := contract.NewResponseError(constants.MalformedFieldErrorCode, constants.RequestEntity, "Invalid expense ID")
+		util.HandleResponse(c.Writer, c.Request, contract.BuildErrorResponse([]*contract.ResponseError{validationResponseError}), "ExpenseHandler::UpdateExpense")
+		return
+	}
+
+	var req contract.UpdateExpenseRequest
+	if err := c.ShouldBindJSON(&req); err != nil {
+		logger.FromContext(ctx).WithError(err).Error("ExpenseHandler::UpdateExpense -> request binding failed")
+		validationResponseError := contract.NewResponseError(constants.MissingFieldErrorCode, constants.RequestEntity, "Invalid request body")
+		util.HandleResponse(c.Writer, c.Request, contract.BuildErrorResponse([]*contract.ResponseError{validationResponseError}), "ExpenseHandler::UpdateExpense")
+		return
+	}
+
+	validationError, validationErrorCode := h.expenseValidator.ValidateUpdateExpenseRequest(&req)
+	if validationError != nil {
+		validationResponseError := contract.NewResponseError(validationErrorCode, constants.RequestEntity, validationError.Error())
+		util.HandleResponse(c.Writer, c.Request, contract.BuildErrorResponse([]*contract.ResponseError{validationResponseError}), "ExpenseHandler::UpdateExpense")
+		return
+	}
+
+	expenseResponse := h.expenseService.UpdateExpense(ctx, contextInfo, expenseID, &req)
+	if expenseResponse.HasErrors() {
+		errorResp := expenseResponse.GetErrors()[0]
+		logger.FromContext(ctx).WithError(errorResp).Error("ExpenseHandler::UpdateExpense -> Failed to update expense from service")
+	}
+
+	util.HandleResponse(c.Writer, c.Request, expenseResponse, "ExpenseHandler::UpdateExpense")
+}
+
+func (h *ExpenseHandler) DeleteExpense(c *gin.Context) {
+	ctx := c.Request.Context()
+	contextInfo := appcontext.FromGinContext(ctx)
+
+	expenseIDStr := c.Param("id")
+	expenseID, err := uuid.Parse(expenseIDStr)
+	if err != nil {
+		logger.FromContext(ctx).WithError(err).Error("ExpenseHandler::DeleteExpense -> Invalid expense ID")
+		validationResponseError := contract.NewResponseError(constants.MalformedFieldErrorCode, constants.RequestEntity, "Invalid expense ID")
+		util.HandleResponse(c.Writer, c.Request, contract.BuildErrorResponse([]*contract.ResponseError{validationResponseError}), "ExpenseHandler::DeleteExpense")
+		return
+	}
+
+	expenseResponse := h.expenseService.DeleteExpense(ctx, contextInfo, expenseID)
+	if expenseResponse.HasErrors() {
+		errorResp := expenseResponse.GetErrors()[0]
+		logger.FromContext(ctx).WithError(errorResp).Error("ExpenseHandler::DeleteExpense -> Failed to delete expense from service")
+	}
+
+	util.HandleResponse(c.Writer, c.Request, expenseResponse, "ExpenseHandler::DeleteExpense")
+}
+
+func (h *ExpenseHandler) GetExpense(c *gin.Context) {
+	ctx := c.Request.Context()
+	contextInfo := appcontext.FromGinContext(ctx)
+
+	expenseIDStr := c.Param("id")
+	expenseID, err := uuid.Parse(expenseIDStr)
+	if err != nil {
+		logger.FromContext(ctx).WithError(err).Error("ExpenseHandler::GetExpense -> Invalid expense ID")
+		validationResponseError := contract.NewResponseError(constants.MalformedFieldErrorCode, constants.RequestEntity, "Invalid expense ID")
+		util.HandleResponse(c.Writer, c.Request, contract.BuildErrorResponse([]*contract.ResponseError{validationResponseError}), "ExpenseHandler::GetExpense")
+		return
+	}
+
+	expenseResponse := h.expenseService.GetExpenseByID(ctx, contextInfo, expenseID)
+	if expenseResponse.HasErrors() {
+		errorResp := expenseResponse.GetErrors()[0]
+		logger.FromContext(ctx).WithError(errorResp).Error("ExpenseHandler::GetExpense -> Failed to get expense from service")
+	}
+
+	util.HandleResponse(c.Writer, c.Request, expenseResponse, "ExpenseHandler::GetExpense")
+}
+
+func (h *ExpenseHandler) ListExpenses(c *gin.Context) {
+	ctx := c.Request.Context()
+	contextInfo := appcontext.FromGinContext(ctx)
+
+	req := &contract.ListExpenseRequest{
+		Page:  1,
+		Limit: 10,
+	}
+
+	if pageStr := c.Query("page"); pageStr != "" {
+		if page, err := strconv.Atoi(pageStr); err == nil {
+			req.Page = page
+		}
+	}
+
+	if limitStr := c.Query("limit"); limitStr != "" {
+		if limit, err := strconv.Atoi(limitStr); err == nil {
+			req.Limit = limit
+		}
+	}
+
+	if search := c.Query("search"); search != "" {
+		req.Search = search
+	}
+
+	if status := c.Query("status"); status != "" {
+		req.Status = status
+	}
+
+	// Prioritize outlet_id from context (e.g. outlet-scoped user),
+	// fall back to query param if context has no outlet.
+	if contextInfo.OutletID != uuid.Nil {
+		req.OutletID = contextInfo.OutletID.String()
+	} else if outletID := c.Query("outlet_id"); outletID != "" {
+		req.OutletID = outletID
+	}
+
+	if startDate := c.Query("start_date"); startDate != "" {
+		req.StartDate = startDate
+	}
+
+	if endDate := c.Query("end_date"); endDate != "" {
+		req.EndDate = endDate
+	}
+
+	validationError, validationErrorCode := h.expenseValidator.ValidateListExpenseRequest(req)
+	if validationError != nil {
+		validationResponseError := contract.NewResponseError(validationErrorCode, constants.RequestEntity, validationError.Error())
+		util.HandleResponse(c.Writer, c.Request, contract.BuildErrorResponse([]*contract.ResponseError{validationResponseError}), "ExpenseHandler::ListExpenses")
+		return
+	}
+
+	expenseResponse := h.expenseService.ListExpenses(ctx, contextInfo, req)
+	if expenseResponse.HasErrors() {
+		errorResp := expenseResponse.GetErrors()[0]
+		logger.FromContext(ctx).WithError(errorResp).Error("ExpenseHandler::ListExpenses -> Failed to list expenses from service")
+	}
+
+	util.HandleResponse(c.Writer, c.Request, expenseResponse, "ExpenseHandler::ListExpenses")
+}

internal/handler/order_handler.go

@@ -140,6 +140,7 @@ func (h *OrderHandler) ListOrders(c *gin.Context) {
 	if modelReq.OutletID == nil && contextInfo.OutletID != uuid.Nil {
 		modelReq.OutletID = &contextInfo.OutletID
 	}
+
 	response, err := h.orderService.ListOrders(c.Request.Context(), modelReq)
 	if err != nil {
 		util.HandleResponse(c.Writer, c.Request, contract.BuildErrorResponse([]*contract.ResponseError{contract.NewResponseError("internal_error", "OrderHandler::ListOrders", err.Error())}), "OrderHandler::ListOrders")

internal/handler/product_handler.go

@@ -60,6 +60,7 @@ func (h *ProductHandler) CreateProduct(c *gin.Context) {
 
 func (h *ProductHandler) UpdateProduct(c *gin.Context) {
 	ctx := c.Request.Context()
+	contextInfo := appcontext.FromGinContext(ctx)
 
 	productIDStr := c.Param("id")
 	productID, err := uuid.Parse(productIDStr)
@@ -85,7 +86,7 @@ func (h *ProductHandler) UpdateProduct(c *gin.Context) {
 		return
 	}
 
-	productResponse := h.productService.UpdateProduct(ctx, productID, &req)
+	productResponse := h.productService.UpdateProduct(ctx, contextInfo, productID, &req)
 	if productResponse.HasErrors() {
 		errorResp := productResponse.GetErrors()[0]
 		logger.FromContext(ctx).WithError(errorResp).Error("ProductHandler::UpdateProduct -> Failed to update product from service")

internal/mappers/category_mapper.go

@@ -13,11 +13,12 @@ func CategoryEntityToModel(entity *entities.Category) *models.Category {
 	return &models.Category{
 		ID:             entity.ID,
 		OrganizationID: entity.OrganizationID,
+		OutletID:       entity.OutletID,
 		Name:           entity.Name,
 		Description:    entity.Description,
-		ImageURL:       nil,  // Entity doesn't have ImageURL, model does
-		Order:      	entity.Order,    // Entity doesn't have SortOrder, model does
-		IsActive:       true, // Entity doesn't have IsActive, default to true
+		ImageURL:       nil,
+		Order:          entity.Order,
+		IsActive:       true,
 		CreatedAt:      entity.CreatedAt,
 		UpdatedAt:      entity.UpdatedAt,
 	}
@@ -32,14 +33,14 @@ func CategoryModelToEntity(model *models.Category) *entities.Category {
 	if model.ImageURL != nil {
 		metadata["image_url"] = *model.ImageURL
 	}
-	// metadata["sort_order"] = model.SortOrder
 
 	return &entities.Category{
 		ID:             model.ID,
 		OrganizationID: model.OrganizationID,
+		OutletID:       model.OutletID,
 		Name:           model.Name,
 		Description:    model.Description,
-		BusinessType:   "restaurant", // Default business type
+		BusinessType:   "restaurant",
 		Order:          model.Order,
 		Metadata:       metadata,
 		CreatedAt:      model.CreatedAt,
@@ -56,14 +57,14 @@ func CreateCategoryRequestToEntity(req *models.CreateCategoryRequest) *entities.
 	if req.ImageURL != nil {
 		metadata["image_url"] = *req.ImageURL
 	}
-	// metadata["sort_order"] = req.SortOrder
 
 	return &entities.Category{
 		OrganizationID: req.OrganizationID,
+		OutletID:       req.OutletID,
 		Name:           req.Name,
 		Description:    req.Description,
 		Order:          req.Order,
-		BusinessType:   "restaurant", // Default business type
+		BusinessType:   "restaurant",
 		Metadata:       metadata,
 	}
 }
@@ -87,11 +88,12 @@ func CategoryEntityToResponse(entity *entities.Category) *models.CategoryRespons
 	return &models.CategoryResponse{
 		ID:             entity.ID,
 		OrganizationID: entity.OrganizationID,
+		OutletID:       entity.OutletID,
 		Name:           entity.Name,
 		Description:    entity.Description,
 		ImageURL:       imageURL,
-		Order:      	entity.Order,
-		IsActive:       true, // Default to true since entity doesn't have this field
+		Order:          entity.Order,
+		IsActive:       true,
 		CreatedAt:      entity.CreatedAt,
 		UpdatedAt:      entity.UpdatedAt,
 	}
@@ -121,6 +123,10 @@ func UpdateCategoryEntityFromRequest(entity *entities.Category, req *models.Upda
 	if req.Order != nil {
 		entity.Order = *req.Order
 	}
+
+	if req.OutletID != nil {
+		entity.OutletID = req.OutletID
+	}
 }
 
 func CategoryEntitiesToModels(entities []*entities.Category) []*models.Category {

internal/mappers/expense_mapper.go

@@ -0,0 +1,128 @@
+package mappers
+
+import (
+	"apskel-pos-be/internal/entities"
+	"apskel-pos-be/internal/models"
+)
+
+func ExpenseEntityToModel(entity *entities.Expense) *models.Expense {
+	if entity == nil {
+		return nil
+	}
+
+	return &models.Expense{
+		ID:              entity.ID,
+		OrganizationID:  entity.OrganizationID,
+		OutletID:        entity.OutletID,
+		Receiver:        entity.Receiver,
+		TransactionDate: entity.TransactionDate,
+		CodeNumber:      entity.CodeNumber,
+		Status:          entity.Status,
+		Description:     entity.Description,
+		Tax:             entity.Tax,
+		Total:           entity.Total,
+		Reserved1:       entity.Reserved1,
+		CreatedAt:       entity.CreatedAt,
+		UpdatedAt:       entity.UpdatedAt,
+	}
+}
+
+func ExpenseModelToEntity(model *models.Expense) *entities.Expense {
+	if model == nil {
+		return nil
+	}
+
+	return &entities.Expense{
+		ID:              model.ID,
+		OrganizationID:  model.OrganizationID,
+		OutletID:        model.OutletID,
+		Receiver:        model.Receiver,
+		TransactionDate: model.TransactionDate,
+		CodeNumber:      model.CodeNumber,
+		Status:          model.Status,
+		Description:     model.Description,
+		Tax:             model.Tax,
+		Total:           model.Total,
+		Reserved1:       model.Reserved1,
+		CreatedAt:       model.CreatedAt,
+		UpdatedAt:       model.UpdatedAt,
+	}
+}
+
+func ExpenseEntityToResponse(entity *entities.Expense) *models.ExpenseResponse {
+	if entity == nil {
+		return nil
+	}
+
+	resp := &models.ExpenseResponse{
+		ID:              entity.ID,
+		OrganizationID:  entity.OrganizationID,
+		OutletID:        entity.OutletID,
+		Receiver:        entity.Receiver,
+		TransactionDate: entity.TransactionDate,
+		CodeNumber:      entity.CodeNumber,
+		Status:          entity.Status,
+		Description:     entity.Description,
+		Tax:             entity.Tax,
+		Total:           entity.Total,
+		Reserved1:       entity.Reserved1,
+		CreatedAt:       entity.CreatedAt,
+		UpdatedAt:       entity.UpdatedAt,
+	}
+
+	if entity.Items != nil {
+		resp.Items = ExpenseItemEntitiesToResponses(entity.Items)
+	}
+
+	return resp
+}
+
+func ExpenseEntitiesToResponses(entities []*entities.Expense) []*models.ExpenseResponse {
+	if entities == nil {
+		return nil
+	}
+
+	responses := make([]*models.ExpenseResponse, len(entities))
+	for i, entity := range entities {
+		responses[i] = ExpenseEntityToResponse(entity)
+	}
+	return responses
+}
+
+func ExpenseItemEntityToResponse(entity *entities.ExpenseItem) *models.ExpenseItemResponse {
+	if entity == nil {
+		return nil
+	}
+
+	response := &models.ExpenseItemResponse{
+		ID:               entity.ID,
+		ExpenseID:        entity.ExpenseID,
+		ChartOfAccountID: entity.ChartOfAccountID,
+		Item:             entity.Item,
+		Description:      entity.Description,
+		Amount:           entity.Amount,
+		CreatedAt:        entity.CreatedAt,
+		UpdatedAt:        entity.UpdatedAt,
+	}
+
+	if entity.ChartOfAccount != nil {
+		response.ChartOfAccountName = entity.ChartOfAccount.Name
+	}
+
+	return response
+}
+
+func ExpenseItemEntitiesToResponses(entities []entities.ExpenseItem) []models.ExpenseItemResponse {
+	if entities == nil {
+		return nil
+	}
+
+	responses := make([]models.ExpenseItemResponse, len(entities))
+	for i, entity := range entities {
+		response := ExpenseItemEntityToResponse(&entity)
+		if response != nil {
+			responses[i] = *response
+		}
+	}
+	return responses
+}

internal/mappers/order_mapper.go

@@ -82,7 +82,7 @@ func OrderEntityToResponse(order *entities.Order) *models.OrderResponse {
 		}
 
 		for i, item := range order.OrderItems {
-			resp := OrderItemEntityToResponse(&item)
+			resp := OrderItemEntityToResponse(&item, order.OutletID)
 			if resp != nil {
 				resp.PaidQuantity = paidQtyByOrderItem[item.ID]
 				response.OrderItems[i] = *resp
@@ -101,11 +101,20 @@ func OrderEntityToResponse(order *entities.Order) *models.OrderResponse {
 	return response
 }
 
-func OrderItemEntityToResponse(item *entities.OrderItem) *models.OrderItemResponse {
+func OrderItemEntityToResponse(item *entities.OrderItem, outletID uuid.UUID) *models.OrderItemResponse {
 	if item == nil {
 		return nil
 	}
 
+	// Resolve print_to_checker from preloaded outlet prices
+	printToChecker := true // default
+	for _, op := range item.Product.ProductOutletPrices {
+		if op.OutletID == outletID {
+			printToChecker = op.PrintToChecker
+			break
+		}
+	}
+
 	response := &models.OrderItemResponse{
 		ID:                  item.ID,
 		OrderID:             item.OrderID,
@@ -130,10 +139,19 @@ func OrderItemEntityToResponse(item *entities.OrderItem) *models.OrderItemRespon
 		CreatedAt:           item.CreatedAt,
 		UpdatedAt:           item.UpdatedAt,
 		PrinterType:         item.Product.PrinterType,
+		PrintToChecker:      printToChecker,
 	}
 
 	if item.Product.ID != uuid.Nil {
 		response.ProductName = item.Product.Name
+		if item.Product.CategoryID != uuid.Nil {
+			categoryID := item.Product.CategoryID
+			response.CategoryID = &categoryID
+		}
+		if item.Product.Category.ID != uuid.Nil {
+			categoryName := item.Product.Category.Name
+			response.CategoryName = &categoryName
+		}
 	}
 
 	if item.ProductVariant != nil {
@@ -316,14 +334,14 @@ func OrderEntitiesToResponses(orders []*entities.Order) []models.OrderResponse {
 	return responses
 }
 
-func OrderItemEntitiesToResponses(items []*entities.OrderItem) []models.OrderItemResponse {
+func OrderItemEntitiesToResponses(items []*entities.OrderItem, outletID uuid.UUID) []models.OrderItemResponse {
 	if items == nil {
 		return nil
 	}
 
 	responses := make([]models.OrderItemResponse, len(items))
 	for i, item := range items {
-		response := OrderItemEntityToResponse(item)
+		response := OrderItemEntityToResponse(item, outletID)
 		if response != nil {
 			responses[i] = *response
 		}

internal/mappers/order_mapper_test.go

@@ -45,7 +45,7 @@ func TestOrderItemEntityToResponse_WithProductNames(t *testing.T) {
 	}
 
 	// Act
-	result := OrderItemEntityToResponse(orderItem)
+	result := OrderItemEntityToResponse(orderItem, uuid.Nil)
 
 	// Assert
 	assert.NotNil(t, result)
@@ -89,7 +89,7 @@ func TestOrderItemEntityToResponse_WithoutProductVariant(t *testing.T) {
 	}
 
 	// Act
-	result := OrderItemEntityToResponse(orderItem)
+	result := OrderItemEntityToResponse(orderItem, uuid.Nil)
 
 	// Assert
 	assert.NotNil(t, result)
@@ -129,7 +129,7 @@ func TestOrderItemEntityToResponse_WithoutProductPreload(t *testing.T) {
 	}
 
 	// Act
-	result := OrderItemEntityToResponse(orderItem)
+	result := OrderItemEntityToResponse(orderItem, uuid.Nil)
 
 	// Assert
 	assert.NotNil(t, result)

internal/mappers/product_outlet_price_mapper.go

@@ -11,12 +11,13 @@ func ProductOutletPriceEntityToModel(entity *entities.ProductOutletPrice) *model
 	}
 
 	return &models.ProductOutletPrice{
-		ID:        entity.ID,
-		ProductID: entity.ProductID,
-		OutletID:  entity.OutletID,
-		Price:     entity.Price,
-		CreatedAt: entity.CreatedAt,
-		UpdatedAt: entity.UpdatedAt,
+		ID:             entity.ID,
+		ProductID:      entity.ProductID,
+		OutletID:       entity.OutletID,
+		Price:          entity.Price,
+		PrintToChecker: entity.PrintToChecker,
+		CreatedAt:      entity.CreatedAt,
+		UpdatedAt:      entity.UpdatedAt,
 	}
 }
 
@@ -26,12 +27,13 @@ func ProductOutletPriceModelToEntity(model *models.ProductOutletPrice) *entities
 	}
 
 	return &entities.ProductOutletPrice{
-		ID:        model.ID,
-		ProductID: model.ProductID,
-		OutletID:  model.OutletID,
-		Price:     model.Price,
-		CreatedAt: model.CreatedAt,
-		UpdatedAt: model.UpdatedAt,
+		ID:             model.ID,
+		ProductID:      model.ProductID,
+		OutletID:       model.OutletID,
+		Price:          model.Price,
+		PrintToChecker: model.PrintToChecker,
+		CreatedAt:      model.CreatedAt,
+		UpdatedAt:      model.UpdatedAt,
 	}
 }
 

internal/middleware/idempotency.go

@@ -0,0 +1,137 @@
+package middleware
+
+import (
+	"bytes"
+	"context"
+	"encoding/json"
+	"fmt"
+	"net/http"
+	"time"
+
+	"github.com/gin-gonic/gin"
+	"github.com/redis/go-redis/v9"
+)
+
+const (
+	IdempotencyKeyHeader = "X-Idempotency-Key"
+	idempotencyTTL       = 24 * time.Hour
+	idempotencyPrefix    = "idempotency:"
+)
+
+type cachedResponse struct {
+	StatusCode int               `json:"status_code"`
+	Headers    map[string]string `json:"headers"`
+	Body       string            `json:"body"`
+}
+
+// IdempotencyMiddleware returns a Gin middleware that ensures idempotent processing
+// for mutating operations. Client must send X-Idempotency-Key header.
+func IdempotencyMiddleware(redisClient *redis.Client) gin.HandlerFunc {
+	return func(c *gin.Context) {
+		key := c.GetHeader(IdempotencyKeyHeader)
+		if key == "" {
+			c.AbortWithStatusJSON(http.StatusBadRequest, gin.H{
+				"success": false,
+				"errors": []gin.H{
+					{
+						"code":   "missing_idempotency_key",
+						"entity": "IdempotencyMiddleware",
+						"cause":  "X-Idempotency-Key header is required",
+					},
+				},
+			})
+			return
+		}
+
+		redisKey := fmt.Sprintf("%s%s", idempotencyPrefix, key)
+		ctx := context.Background()
+
+		fmt.Printf("[DEBUG] IdempotencyMiddleware: key=%s redisKey=%s\n", key, redisKey)
+
+		// Check if key already exists (request was already processed)
+		cached, err := redisClient.Get(ctx, redisKey).Result()
+		if err == nil {
+			// Key exists — return cached response
+			fmt.Printf("[DEBUG] IdempotencyMiddleware: cache HIT for key=%s\n", key)
+			var resp cachedResponse
+			if err := json.Unmarshal([]byte(cached), &resp); err == nil {
+				for k, v := range resp.Headers {
+					c.Writer.Header().Set(k, v)
+				}
+				c.Writer.Header().Set("X-Idempotent-Replay", "true")
+				c.Data(resp.StatusCode, "application/json", []byte(resp.Body))
+				c.Abort()
+				return
+			}
+		} else {
+			fmt.Printf("[DEBUG] IdempotencyMiddleware: cache MISS for key=%s err=%v\n", key, err)
+		}
+
+		// Mark key as in-progress to prevent concurrent duplicates
+		set, err := redisClient.SetNX(ctx, redisKey, "processing", idempotencyTTL).Result()
+		if err != nil {
+			// Redis error — proceed without idempotency (fail open)
+			c.Next()
+			return
+		}
+		if !set {
+			// Another request with the same key is being processed
+			c.AbortWithStatusJSON(http.StatusConflict, gin.H{
+				"success": false,
+				"errors": []gin.H{
+					{
+						"code":   "request_in_progress",
+						"entity": "IdempotencyMiddleware",
+						"cause":  "A request with this idempotency key is already being processed",
+					},
+				},
+			})
+			return
+		}
+
+		// Capture response using a custom writer
+		writer := &responseCapture{
+			ResponseWriter: c.Writer,
+			body:           &bytes.Buffer{},
+		}
+		c.Writer = writer
+
+		c.Next()
+
+		// After handler completes, cache the response only if successful (2xx)
+		statusCode := writer.Status()
+		if statusCode >= 200 && statusCode < 300 {
+			resp := cachedResponse{
+				StatusCode: statusCode,
+				Headers: map[string]string{
+					"Content-Type": writer.Header().Get("Content-Type"),
+				},
+				Body: writer.body.String(),
+			}
+
+			respJSON, err := json.Marshal(resp)
+			if err == nil {
+				redisClient.Set(ctx, redisKey, string(respJSON), idempotencyTTL)
+			}
+		} else {
+			// Remove the in-progress key so the client can retry with the same key
+			redisClient.Del(ctx, redisKey)
+		}
+	}
+}
+
+// responseCapture wraps gin.ResponseWriter to capture the response body
+type responseCapture struct {
+	gin.ResponseWriter
+	body *bytes.Buffer
+}
+
+func (w *responseCapture) Write(b []byte) (int, error) {
+	w.body.Write(b)
+	return w.ResponseWriter.Write(b)
+}
+
+func (w *responseCapture) WriteString(s string) (int, error) {
+	w.body.WriteString(s)
+	return w.ResponseWriter.WriteString(s)
+}

internal/models/analytics.go

@@ -172,6 +172,7 @@ type ProductAnalyticsData struct {
 	ProductID               uuid.UUID `json:"product_id"`
 	ProductName             string    `json:"product_name"`
 	ProductSku              string    `json:"product_sku"`
+	ProductPrice            float64   `json:"product_price"`
 	CategoryID              uuid.UUID `json:"category_id"`
 	CategoryName            string    `json:"category_name"`
 	CategoryOrder           int       `json:"category_order"`
@@ -246,7 +247,6 @@ type DashboardOverview struct {
 	RefundedOrders    int64   `json:"refunded_orders"`
 }
 
-// ProfitLossAnalyticsRequest represents the request for profit and loss analytics
 type ProfitLossAnalyticsRequest struct {
 	OrganizationID uuid.UUID  `validate:"required"`
 	OutletID       *uuid.UUID `validate:"omitempty"`
@@ -255,19 +255,20 @@ type ProfitLossAnalyticsRequest struct {
 	GroupBy        string     `validate:"omitempty,oneof=day hour week month"`
 }
 
-// ProfitLossAnalyticsResponse represents the response for profit and loss analytics
 type ProfitLossAnalyticsResponse struct {
-	OrganizationID uuid.UUID           `json:"organization_id"`
-	OutletID       *uuid.UUID          `json:"outlet_id,omitempty"`
-	DateFrom       time.Time           `json:"date_from"`
-	DateTo         time.Time           `json:"date_to"`
-	GroupBy        string              `json:"group_by"`
-	Summary        ProfitLossSummary   `json:"summary"`
-	Data           []ProfitLossData    `json:"data"`
-	ProductData    []ProductProfitData `json:"product_data"`
+	OrganizationID           uuid.UUID                `json:"organization_id"`
+	OutletID                 *uuid.UUID               `json:"outlet_id,omitempty"`
+	DateFrom                 time.Time                `json:"date_from"`
+	DateTo                   time.Time                `json:"date_to"`
+	GroupBy                  string                   `json:"group_by"`
+	Summary                  ProfitLossSummary        `json:"summary"`
+	Data                     []ProfitLossData         `json:"data"`
+	ProductData              []ProductProfitData      `json:"product_data"`
+	MainSummary              []ProfitLossSummaryRow   `json:"main_summary"`
+	OperationalExpenses      []OperationalExpenseItem `json:"operational_expenses"`
+	OperationalExpensesTotal float64                  `json:"operational_expenses_total"`
 }
 
-// ProfitLossSummary represents the summary of profit and loss analytics
 type ProfitLossSummary struct {
 	TotalRevenue       float64 `json:"total_revenue"`
 	TotalCost          float64 `json:"total_cost"`
@@ -282,7 +283,6 @@ type ProfitLossSummary struct {
 	ProfitabilityRatio float64 `json:"profitability_ratio"`
 }
 
-// ProfitLossData represents individual profit and loss data point by time period
 type ProfitLossData struct {
 	Date              time.Time `json:"date"`
 	Revenue           float64   `json:"revenue"`
@@ -296,7 +296,6 @@ type ProfitLossData struct {
 	Orders            int64     `json:"orders"`
 }
 
-// ProductProfitData represents profit data for individual products
 type ProductProfitData struct {
 	ProductID         uuid.UUID `json:"product_id"`
 	ProductName       string    `json:"product_name"`
@@ -311,3 +310,19 @@ type ProductProfitData struct {
 	AverageCost       float64   `json:"average_cost"`
 	ProfitPerUnit     float64   `json:"profit_per_unit"`
 }
+
+type ProfitLossSummaryRow struct {
+	ID           string                 `json:"id"`
+	Label        string                 `json:"label"`
+	IsBold       bool                   `json:"is_bold"`
+	TodayNominal float64                `json:"today_nominal"`
+	TodayPct     float64                `json:"today_pct"`
+	MtdNominal   float64                `json:"mtd_nominal"`
+	MtdPct       float64                `json:"mtd_pct"`
+	SubItems     []ProfitLossSummaryRow `json:"sub_items,omitempty"`
+}
+
+type OperationalExpenseItem struct {
+	Item    string  `json:"item"`
+	Nominal float64 `json:"nominal"`
+}

internal/models/category.go

@@ -9,10 +9,11 @@ import (
 type Category struct {
 	ID             uuid.UUID
 	OrganizationID uuid.UUID
+	OutletID       *uuid.UUID
 	Name           string
 	Description    *string
 	ImageURL       *string
-	Order      	   int
+	Order          int
 	IsActive       bool
 	CreatedAt      time.Time
 	UpdatedAt      time.Time
@@ -20,27 +21,30 @@ type Category struct {
 
 type CreateCategoryRequest struct {
 	OrganizationID uuid.UUID `validate:"required"`
-	Name           string    `validate:"required,min=1,max=255"`
-	Description    *string   `validate:"omitempty,max=1000"`
-	ImageURL       *string   `validate:"omitempty,url"`
-	Order      	   int       `validate:"min=0"`
+	OutletID       *uuid.UUID
+	Name           string  `validate:"required,min=1,max=255"`
+	Description    *string `validate:"omitempty,max=1000"`
+	ImageURL       *string `validate:"omitempty,url"`
+	Order          int     `validate:"min=0"`
 }
 
 type UpdateCategoryRequest struct {
 	Name        *string `validate:"omitempty,min=1,max=255"`
 	Description *string `validate:"omitempty,max=1000"`
 	ImageURL    *string `validate:"omitempty,url"`
-	Order       *int    `validate:"omitempty,min=0"`
+	OutletID    *uuid.UUID
+	Order       *int `validate:"omitempty,min=0"`
 	IsActive    *bool
 }
 
 type CategoryResponse struct {
 	ID             uuid.UUID
 	OrganizationID uuid.UUID
+	OutletID       *uuid.UUID
 	Name           string
 	Description    *string
 	ImageURL       *string
-	Order      int
+	Order          int
 	IsActive       bool
 	CreatedAt      time.Time
 	UpdatedAt      time.Time

internal/models/expense.go

@@ -0,0 +1,120 @@
+package models
+
+import (
+	"time"
+
+	"github.com/google/uuid"
+)
+
+type Expense struct {
+	ID              uuid.UUID `json:"id"`
+	OrganizationID  uuid.UUID `json:"organization_id"`
+	OutletID        uuid.UUID `json:"outlet_id"`
+	Receiver        string    `json:"receiver"`
+	TransactionDate time.Time `json:"transaction_date"`
+	CodeNumber      string    `json:"code_number"`
+	Status          string    `json:"status"`
+	Description     *string   `json:"description"`
+	Tax             float64   `json:"tax"`
+	Total           float64   `json:"total"`
+	Reserved1       *string   `json:"reserved1"`
+	CreatedAt       time.Time `json:"created_at"`
+	UpdatedAt       time.Time `json:"updated_at"`
+}
+
+type ExpenseItem struct {
+	ID               uuid.UUID `json:"id"`
+	ExpenseID        uuid.UUID `json:"expense_id"`
+	ChartOfAccountID uuid.UUID `json:"chart_of_account_id"`
+	Item             string    `json:"item"`
+	Description      *string   `json:"description"`
+	Amount           float64   `json:"amount"`
+	CreatedAt        time.Time `json:"created_at"`
+	UpdatedAt        time.Time `json:"updated_at"`
+}
+
+type ExpenseResponse struct {
+	ID              uuid.UUID             `json:"id"`
+	OrganizationID  uuid.UUID             `json:"organization_id"`
+	OutletID        uuid.UUID             `json:"outlet_id"`
+	Receiver        string                `json:"receiver"`
+	TransactionDate time.Time             `json:"transaction_date"`
+	CodeNumber      string                `json:"code_number"`
+	Status          string                `json:"status"`
+	Description     *string               `json:"description"`
+	Tax             float64               `json:"tax"`
+	Total           float64               `json:"total"`
+	Reserved1       *string               `json:"reserved1"`
+	CreatedAt       time.Time             `json:"created_at"`
+	UpdatedAt       time.Time             `json:"updated_at"`
+	Items           []ExpenseItemResponse `json:"items,omitempty"`
+}
+
+type ExpenseItemResponse struct {
+	ID                 uuid.UUID `json:"id"`
+	ExpenseID          uuid.UUID `json:"expense_id"`
+	ChartOfAccountID   uuid.UUID `json:"chart_of_account_id"`
+	ChartOfAccountName string    `json:"chart_of_account_name,omitempty"`
+	Item               string    `json:"item"`
+	Description        *string   `json:"description"`
+	Amount             float64   `json:"amount"`
+	CreatedAt          time.Time `json:"created_at"`
+	UpdatedAt          time.Time `json:"updated_at"`
+}
+
+type CreateExpenseRequest struct {
+	Receiver        string                     `json:"receiver"`
+	TransactionDate string                     `json:"transaction_date"`
+	CodeNumber      string                     `json:"code_number"`
+	OutletID        string                     `json:"outlet_id"`
+	Status          *string                    `json:"status,omitempty"`
+	Description     *string                    `json:"description"`
+	Tax             float64                    `json:"tax"`
+	Total           float64                    `json:"total"`
+	Items           []CreateExpenseItemRequest `json:"items"`
+}
+
+type CreateExpenseItemRequest struct {
+	ChartOfAccountID string  `json:"chart_of_account_id"`
+	Item             string  `json:"item"`
+	Description      *string `json:"description,omitempty"`
+	Amount           float64 `json:"amount"`
+}
+
+type UpdateExpenseRequest struct {
+	Receiver        *string                    `json:"receiver,omitempty"`
+	TransactionDate *string                    `json:"transaction_date,omitempty"`
+	CodeNumber      *string                    `json:"code_number,omitempty"`
+	OutletID        *string                    `json:"outlet_id,omitempty"`
+	Status          *string                    `json:"status,omitempty"`
+	Description     *string                    `json:"description,omitempty"`
+	Tax             *float64                   `json:"tax,omitempty"`
+	Total           *float64                   `json:"total,omitempty"`
+	Reserved1       *string                    `json:"reserved1,omitempty"`
+	Items           []UpdateExpenseItemRequest `json:"items,omitempty"`
+}
+
+type UpdateExpenseItemRequest struct {
+	ChartOfAccountID *string  `json:"chart_of_account_id,omitempty"`
+	Item             *string  `json:"item,omitempty"`
+	Description      *string  `json:"description,omitempty"`
+	Amount           *float64 `json:"amount,omitempty"`
+}
+
+type ListExpenseRequest struct {
+	Page      int    `json:"page"`
+	Limit     int    `json:"limit"`
+	Search    string `json:"search,omitempty"`
+	OutletID  string `json:"outlet_id,omitempty"`
+	Status    string `json:"status,omitempty"`
+	StartDate string `json:"start_date,omitempty"`
+	EndDate   string `json:"end_date,omitempty"`
+}
+
+type ListExpenseResponse struct {
+	Expenses   []*ExpenseResponse `json:"expenses"`
+	TotalCount int                `json:"total_count"`
+	Page       int                `json:"page"`
+	Limit      int                `json:"limit"`
+	TotalPages int                `json:"total_pages"`
+}

internal/models/order.go

@@ -188,6 +188,8 @@ type OrderItemResponse struct {
 	ProductName         string
 	ProductVariantID    *uuid.UUID
 	ProductVariantName  *string
+	CategoryID          *uuid.UUID
+	CategoryName        *string
 	Quantity            int
 	UnitPrice           float64
 	TotalPrice          float64
@@ -207,6 +209,7 @@ type OrderItemResponse struct {
 	CreatedAt           time.Time
 	UpdatedAt           time.Time
 	PrinterType         string
+	PrintToChecker      bool
 	PaidQuantity        int
 }
 

internal/models/product.go

@@ -40,6 +40,7 @@ type ProductVariant struct {
 
 type CreateProductRequest struct {
 	OrganizationID uuid.UUID              `validate:"required"`
+	OutletID       uuid.UUID              `validate:"omitempty"` // If set, upsert product_outlet_prices on create
 	CategoryID     uuid.UUID              `validate:"required"`
 	SKU            *string                `validate:"omitempty,max=100"`
 	Name           string                 `validate:"required,min=1,max=255"`
@@ -49,6 +50,7 @@ type CreateProductRequest struct {
 	BusinessType   constants.BusinessType `validate:"required"`
 	ImageURL       *string                `validate:"omitempty,max=500"`
 	PrinterType    *string                `validate:"omitempty,max=50"`
+	PrintToChecker *bool                  `validate:"omitempty"`
 	UnitID         *uuid.UUID             `validate:"omitempty"`
 	HasIngredients bool                   `validate:"omitempty"`
 	Metadata       map[string]interface{}
@@ -60,6 +62,7 @@ type CreateProductRequest struct {
 }
 
 type UpdateProductRequest struct {
+	OutletID       uuid.UUID  `validate:"omitempty"` // If set, upsert product_outlet_prices on update
 	CategoryID     *uuid.UUID `validate:"omitempty"`
 	SKU            *string    `validate:"omitempty,max=100"`
 	Name           *string    `validate:"omitempty,min=1,max=255"`
@@ -68,6 +71,7 @@ type UpdateProductRequest struct {
 	Cost           *float64   `validate:"omitempty,min=0"`
 	ImageURL       *string    `validate:"omitempty,max=500"`
 	PrinterType    *string    `validate:"omitempty,max=50"`
+	PrintToChecker *bool      `validate:"omitempty"`
 	UnitID         *uuid.UUID `validate:"omitempty"`
 	HasIngredients *bool      `validate:"omitempty"`
 	Metadata       map[string]interface{}
@@ -106,6 +110,7 @@ type ProductResponse struct {
 	BusinessType   constants.BusinessType
 	ImageURL       *string
 	PrinterType    string
+	PrintToChecker bool
 	UnitID         *uuid.UUID
 	HasIngredients bool
 	Metadata       map[string]interface{}
@@ -116,9 +121,10 @@ type ProductResponse struct {
 }
 
 type OutletPrice struct {
-	OutletID   uuid.UUID
-	OutletName string
-	Price      float64
+	OutletID       uuid.UUID
+	OutletName     string
+	Price          float64
+	PrintToChecker bool
 }
 
 type ProductVariantResponse struct {

internal/models/product_outlet_price.go

@@ -7,22 +7,25 @@ import (
 )
 
 type ProductOutletPrice struct {
-	ID        uuid.UUID
-	ProductID uuid.UUID
-	OutletID  uuid.UUID
-	Price     float64
-	CreatedAt time.Time
-	UpdatedAt time.Time
+	ID             uuid.UUID
+	ProductID      uuid.UUID
+	OutletID       uuid.UUID
+	Price          float64
+	PrintToChecker bool
+	CreatedAt      time.Time
+	UpdatedAt      time.Time
 }
 
 type CreateProductOutletPriceRequest struct {
-	ProductID uuid.UUID `validate:"required"`
-	OutletID  uuid.UUID `validate:"required"`
-	Price     float64   `validate:"required,min=0"`
+	ProductID      uuid.UUID `validate:"required"`
+	OutletID       uuid.UUID `validate:"required"`
+	Price          float64   `validate:"required,min=0"`
+	PrintToChecker bool
 }
 
 type UpdateProductOutletPriceRequest struct {
-	Price *float64 `validate:"required,min=0"`
+	Price          *float64 `validate:"required,min=0"`
+	PrintToChecker *bool
 }
 
 type ProductOutletPriceResponse struct {

internal/models/purchase_order.go

@@ -7,18 +7,18 @@ import (
 )
 
 type PurchaseOrder struct {
-	ID              uuid.UUID `json:"id"`
-	OrganizationID  uuid.UUID `json:"organization_id"`
-	VendorID        uuid.UUID `json:"vendor_id"`
-	PONumber        string    `json:"po_number"`
-	TransactionDate time.Time `json:"transaction_date"`
-	DueDate         time.Time `json:"due_date"`
-	Reference       *string   `json:"reference"`
-	Status          string    `json:"status"`
-	Message         *string   `json:"message"`
-	TotalAmount     float64   `json:"total_amount"`
-	CreatedAt       time.Time `json:"created_at"`
-	UpdatedAt       time.Time `json:"updated_at"`
+	ID              uuid.UUID  `json:"id"`
+	OrganizationID  uuid.UUID  `json:"organization_id"`
+	VendorID        uuid.UUID  `json:"vendor_id"`
+	PONumber        string     `json:"po_number"`
+	TransactionDate time.Time  `json:"transaction_date"`
+	DueDate         *time.Time `json:"due_date"`
+	Reference       *string    `json:"reference"`
+	Status          string     `json:"status"`
+	Message         *string    `json:"message"`
+	TotalAmount     float64    `json:"total_amount"`
+	CreatedAt       time.Time  `json:"created_at"`
+	UpdatedAt       time.Time  `json:"updated_at"`
 }
 
 type PurchaseOrderItem struct {
@@ -46,7 +46,7 @@ type PurchaseOrderResponse struct {
 	VendorID        uuid.UUID                         `json:"vendor_id"`
 	PONumber        string                            `json:"po_number"`
 	TransactionDate time.Time                         `json:"transaction_date"`
-	DueDate         time.Time                         `json:"due_date"`
+	DueDate         *time.Time                        `json:"due_date"`
 	Reference       *string                           `json:"reference"`
 	Status          string                            `json:"status"`
 	Message         *string                           `json:"message"`
@@ -84,7 +84,7 @@ type CreatePurchaseOrderRequest struct {
 	VendorID          uuid.UUID                        `json:"vendor_id"`
 	PONumber          string                           `json:"po_number"`
 	TransactionDate   time.Time                        `json:"transaction_date"`
-	DueDate           time.Time                        `json:"due_date"`
+	DueDate           *time.Time                       `json:"due_date,omitempty"`
 	Reference         *string                          `json:"reference,omitempty"`
 	Status            *string                          `json:"status,omitempty"`
 	Message           *string                          `json:"message,omitempty"`

internal/processor/analytics_processor.go

@@ -3,8 +3,10 @@ package processor
 import (
 	"context"
 	"fmt"
+	"strings"
 	"time"
 
+	"apskel-pos-be/internal/entities"
 	"apskel-pos-be/internal/models"
 	"apskel-pos-be/internal/repository"
 )
@@ -21,11 +23,13 @@ type AnalyticsProcessor interface {
 
 type AnalyticsProcessorImpl struct {
 	analyticsRepo repository.AnalyticsRepository
+	expenseRepo   ExpenseRepository
 }
 
-func NewAnalyticsProcessorImpl(analyticsRepo repository.AnalyticsRepository) *AnalyticsProcessorImpl {
+func NewAnalyticsProcessorImpl(analyticsRepo repository.AnalyticsRepository, expenseRepo ExpenseRepository) *AnalyticsProcessorImpl {
 	return &AnalyticsProcessorImpl{
 		analyticsRepo: analyticsRepo,
+		expenseRepo:   expenseRepo,
 	}
 }
 
@@ -260,6 +264,7 @@ func (p *AnalyticsProcessorImpl) GetProductAnalytics(ctx context.Context, req *m
 			ProductID:               data.ProductID,
 			ProductName:             data.ProductName,
 			ProductSku:              data.ProductSku,
+			ProductPrice:            data.ProductPrice,
 			CategoryID:              data.CategoryID,
 			CategoryName:            data.CategoryName,
 			CategoryOrder:           data.CategoryOrder,
@@ -394,17 +399,27 @@ func (p *AnalyticsProcessorImpl) GetDashboardAnalytics(ctx context.Context, req
 }
 
 func (p *AnalyticsProcessorImpl) GetProfitLossAnalytics(ctx context.Context, req *models.ProfitLossAnalyticsRequest) (*models.ProfitLossAnalyticsResponse, error) {
+	if req.DateFrom.IsZero() {
+		return nil, fmt.Errorf("date_from is required")
+	}
+
+	if req.DateTo.IsZero() {
+		return nil, fmt.Errorf("date_to is required")
+	}
+
 	if req.DateFrom.After(req.DateTo) {
 		return nil, fmt.Errorf("date_from cannot be after date_to")
 	}
 
-	// Get analytics data from repository
+	if req.GroupBy == "" {
+		req.GroupBy = "day"
+	}
+
 	result, err := p.analyticsRepo.GetProfitLossAnalytics(ctx, req.OrganizationID, req.OutletID, req.DateFrom, req.DateTo, req.GroupBy)
 	if err != nil {
 		return nil, fmt.Errorf("failed to get profit/loss analytics: %w", err)
 	}
 
-	// Transform entities to models
 	data := make([]models.ProfitLossData, len(result.Data))
 	for i, item := range result.Data {
 		data[i] = models.ProfitLossData{
@@ -439,6 +454,103 @@ func (p *AnalyticsProcessorImpl) GetProfitLossAnalytics(ctx context.Context, req
 		}
 	}
 
+	todayPromosi := getExpenseAmountByCategory(result.TodayExpenseByCategory, "promosi")
+	todayLainLain := getExpenseAmountByCategory(result.TodayExpenseByCategory, "lain")
+	todayTotalOps := todayPromosi + todayLainLain
+	todayGaji := getExpenseAmountByCategory(result.TodayExpenseByCategory, "gaji")
+
+	mtdPromosi := getExpenseAmountByCategory(result.MtdExpenseByCategory, "promosi")
+	mtdLainLain := getExpenseAmountByCategory(result.MtdExpenseByCategory, "lain")
+	mtdTotalOps := mtdPromosi + mtdLainLain
+	mtdGaji := getExpenseAmountByCategory(result.MtdExpenseByCategory, "gaji")
+
+	todayGrossProfit := result.TodayRevenue - result.TodayCost
+	mtdGrossProfit := result.MtdRevenue - result.MtdCost
+
+	todayProfitBeforeGaji := todayGrossProfit - todayTotalOps
+	mtdProfitBeforeGaji := mtdGrossProfit - mtdTotalOps
+
+	todayNetProfit := todayProfitBeforeGaji - todayGaji
+	mtdNetProfit := mtdProfitBeforeGaji - mtdGaji
+
+	todayPct := func(nominal float64) float64 {
+		if result.TodayRevenue == 0 {
+			return 0
+		}
+		return (nominal / result.TodayRevenue) * 100
+	}
+	mtdPct := func(nominal float64) float64 {
+		if result.MtdRevenue == 0 {
+			return 0
+		}
+		return (nominal / result.MtdRevenue) * 100
+	}
+
+	mainSummary := []models.ProfitLossSummaryRow{
+		{
+			ID: "total_omset", Label: "TOTAL OMSET",
+			TodayNominal: result.TodayRevenue, TodayPct: todayPct(result.TodayRevenue),
+			MtdNominal: result.MtdRevenue, MtdPct: mtdPct(result.MtdRevenue),
+		},
+		{
+			ID: "hpp", Label: "HPP",
+			TodayNominal: result.TodayCost, TodayPct: todayPct(result.TodayCost),
+			MtdNominal: result.MtdCost, MtdPct: mtdPct(result.MtdCost),
+		},
+		{
+			ID: "laba_kotor", Label: "Laba Kotor (1-2)",
+			TodayNominal: todayGrossProfit, TodayPct: todayPct(todayGrossProfit),
+			MtdNominal: mtdGrossProfit, MtdPct: mtdPct(mtdGrossProfit),
+		},
+		{
+			ID: "biaya_ops", Label: "BIAYA OPS",
+			TodayNominal: todayTotalOps, TodayPct: todayPct(todayTotalOps),
+			MtdNominal: mtdTotalOps, MtdPct: mtdPct(mtdTotalOps),
+			SubItems: []models.ProfitLossSummaryRow{
+				{
+					ID: "by_promosi", Label: "1. By Promosi",
+					TodayNominal: todayPromosi, TodayPct: todayPct(todayPromosi),
+					MtdNominal: mtdPromosi, MtdPct: mtdPct(mtdPromosi),
+				},
+				{
+					ID: "by_lain_lain", Label: "2. By Lain lain",
+					TodayNominal: todayLainLain, TodayPct: todayPct(todayLainLain),
+					MtdNominal: mtdLainLain, MtdPct: mtdPct(mtdLainLain),
+				},
+				{
+					ID: "total_biaya_ops", Label: "Total Biaya OPS (4.1+4.2)", IsBold: true,
+					TodayNominal: todayTotalOps, TodayPct: todayPct(todayTotalOps),
+					MtdNominal: mtdTotalOps, MtdPct: mtdPct(mtdTotalOps),
+				},
+			},
+		},
+		{
+			ID: "laba_rugi_sblm_gaji", Label: "Laba/Rugi sblm Gaji (3-4)",
+			TodayNominal: todayProfitBeforeGaji, TodayPct: todayPct(todayProfitBeforeGaji),
+			MtdNominal: mtdProfitBeforeGaji, MtdPct: mtdPct(mtdProfitBeforeGaji),
+		},
+		{
+			ID: "biaya_gaji", Label: "BIAYA GAJI",
+			TodayNominal: todayGaji, TodayPct: todayPct(todayGaji),
+			MtdNominal: mtdGaji, MtdPct: mtdPct(mtdGaji),
+		},
+		{
+			ID: "laba_rugi", Label: "Laba/Rugi (5-6)", IsBold: true,
+			TodayNominal: todayNetProfit, TodayPct: todayPct(todayNetProfit),
+			MtdNominal: mtdNetProfit, MtdPct: mtdPct(mtdNetProfit),
+		},
+	}
+
+	opsItems := make([]models.OperationalExpenseItem, len(result.OperationalExpenseItems))
+	var opsTotal float64
+	for i, item := range result.OperationalExpenseItems {
+		opsItems[i] = models.OperationalExpenseItem{
+			Item:    item.Item,
+			Nominal: item.Amount,
+		}
+		opsTotal += item.Amount
+	}
+
 	return &models.ProfitLossAnalyticsResponse{
 		OrganizationID: req.OrganizationID,
 		OutletID:       req.OutletID,
@@ -458,7 +570,19 @@ func (p *AnalyticsProcessorImpl) GetProfitLossAnalytics(ctx context.Context, req
 			AverageProfit:      result.Summary.AverageProfit,
 			ProfitabilityRatio: result.Summary.ProfitabilityRatio,
 		},
-		Data:        data,
-		ProductData: productData,
+		Data:                     data,
+		ProductData:              productData,
+		MainSummary:              mainSummary,
+		OperationalExpenses:      opsItems,
+		OperationalExpensesTotal: opsTotal,
 	}, nil
 }
+
+func getExpenseAmountByCategory(categories []entities.ExpenseCategoryTotal, keyword string) float64 {
+	for _, cat := range categories {
+		if strings.Contains(strings.ToLower(cat.CategoryName), keyword) {
+			return cat.Amount
+		}
+	}
+	return 0
+}

internal/processor/analytics_processor_test.go

@@ -14,6 +14,8 @@ import (
 
 type analyticsRepositoryStub struct {
 	purchasingResult *entities.PurchasingAnalytics
+	profitLossResult *entities.ProfitLossAnalytics
+	profitLossGroup  string
 }
 
 func (analyticsRepositoryStub) GetPaymentMethodAnalytics(context.Context, uuid.UUID, *uuid.UUID, time.Time, time.Time) ([]*entities.PaymentMethodAnalytics, error) {
@@ -40,9 +42,27 @@ func (analyticsRepositoryStub) GetDashboardOverview(context.Context, uuid.UUID,
 	return nil, nil
 }
 
-func (analyticsRepositoryStub) GetProfitLossAnalytics(context.Context, uuid.UUID, *uuid.UUID, time.Time, time.Time, string) (*entities.ProfitLossAnalytics, error) {
+func (s analyticsRepositoryStub) GetProfitLossAnalytics(_ context.Context, _ uuid.UUID, _ *uuid.UUID, _, _ time.Time, groupBy string) (*entities.ProfitLossAnalytics, error) {
+	s.profitLossGroup = groupBy
+	return s.profitLossResult, nil
+}
+
+type expenseRepositoryStub struct{}
+
+func (expenseRepositoryStub) Create(context.Context, *entities.Expense) error { return nil }
+func (expenseRepositoryStub) GetByID(context.Context, uuid.UUID) (*entities.Expense, error) {
 	return nil, nil
 }
+func (expenseRepositoryStub) GetByIDAndOrganizationID(context.Context, uuid.UUID, uuid.UUID) (*entities.Expense, error) {
+	return nil, nil
+}
+func (expenseRepositoryStub) Update(context.Context, *entities.Expense) error { return nil }
+func (expenseRepositoryStub) Delete(context.Context, uuid.UUID) error         { return nil }
+func (expenseRepositoryStub) List(context.Context, uuid.UUID, map[string]interface{}, int, int) ([]*entities.Expense, int64, error) {
+	return nil, 0, nil
+}
+func (expenseRepositoryStub) CreateItem(context.Context, *entities.ExpenseItem) error { return nil }
+func (expenseRepositoryStub) DeleteItemsByExpenseID(context.Context, uuid.UUID) error { return nil }
 
 func TestAnalyticsProcessorGetPurchasingAnalyticsPassesOutletName(t *testing.T) {
 	outletID := uuid.New()
@@ -55,7 +75,7 @@ func TestAnalyticsProcessorGetPurchasingAnalyticsPassesOutletName(t *testing.T)
 				TotalPurchases: 125,
 			},
 		},
-	})
+	}, expenseRepositoryStub{})
 
 	result, err := processor.GetPurchasingAnalytics(context.Background(), &models.PurchasingAnalyticsRequest{
 		OrganizationID: uuid.New(),
@@ -71,3 +91,77 @@ func TestAnalyticsProcessorGetPurchasingAnalyticsPassesOutletName(t *testing.T)
 	require.Equal(t, outletName, *result.OutletName)
 	require.Equal(t, float64(125), result.Summary.TotalPurchases)
 }
+
+func TestAnalyticsProcessorGetProfitLossAnalyticsMapsOverviewAndReportFields(t *testing.T) {
+	productID := uuid.New()
+	categoryID := uuid.New()
+	now := time.Date(2026, 5, 1, 0, 0, 0, 0, time.UTC)
+	processor := NewAnalyticsProcessorImpl(analyticsRepositoryStub{
+		profitLossResult: &entities.ProfitLossAnalytics{
+			Summary: entities.ProfitLossSummary{
+				TotalRevenue:       1000,
+				TotalCost:          400,
+				GrossProfit:        600,
+				GrossProfitMargin:  60,
+				TotalTax:           50,
+				TotalDiscount:      25,
+				NetProfit:          575,
+				NetProfitMargin:    57.5,
+				TotalOrders:        10,
+				AverageProfit:      57.5,
+				ProfitabilityRatio: 150,
+			},
+			Data: []entities.ProfitLossData{
+				{
+					Date:              now,
+					Revenue:           1000,
+					Cost:              400,
+					GrossProfit:       600,
+					GrossProfitMargin: 60,
+					Tax:               50,
+					Discount:          25,
+					NetProfit:         575,
+					NetProfitMargin:   57.5,
+					Orders:            10,
+				},
+			},
+			ProductData: []entities.ProductProfitData{
+				{
+					ProductID:         productID,
+					ProductName:       "Nasi",
+					CategoryID:        categoryID,
+					CategoryName:      "Food",
+					QuantitySold:      5,
+					Revenue:           500,
+					Cost:              200,
+					GrossProfit:       300,
+					GrossProfitMargin: 60,
+					AveragePrice:      100,
+					AverageCost:       40,
+					ProfitPerUnit:     60,
+				},
+			},
+			TodayRevenue: 1000,
+			TodayCost:    400,
+			MtdRevenue:   2000,
+			MtdCost:      800,
+		},
+	}, expenseRepositoryStub{})
+
+	result, err := processor.GetProfitLossAnalytics(context.Background(), &models.ProfitLossAnalyticsRequest{
+		OrganizationID: uuid.New(),
+		DateFrom:       now,
+		DateTo:         now,
+	})
+
+	require.NoError(t, err)
+	require.NotNil(t, result)
+	require.Equal(t, "day", result.GroupBy)
+	require.Equal(t, float64(1000), result.Summary.TotalRevenue)
+	require.Len(t, result.Data, 1)
+	require.Equal(t, float64(575), result.Data[0].NetProfit)
+	require.Len(t, result.ProductData, 1)
+	require.Equal(t, productID, result.ProductData[0].ProductID)
+	require.NotEmpty(t, result.MainSummary)
+	require.Equal(t, "total_omset", result.MainSummary[0].ID)
+}

internal/processor/expense_processor.go

@@ -0,0 +1,223 @@
+package processor
+
+import (
+	"context"
+	"fmt"
+	"time"
+
+	"apskel-pos-be/internal/constants"
+	"apskel-pos-be/internal/entities"
+	"apskel-pos-be/internal/mappers"
+	"apskel-pos-be/internal/models"
+
+	"github.com/google/uuid"
+)
+
+type ExpenseProcessor interface {
+	CreateExpense(ctx context.Context, organizationID uuid.UUID, req *models.CreateExpenseRequest) (*models.ExpenseResponse, error)
+	UpdateExpense(ctx context.Context, id, organizationID uuid.UUID, req *models.UpdateExpenseRequest) (*models.ExpenseResponse, error)
+	DeleteExpense(ctx context.Context, id, organizationID uuid.UUID) error
+	GetExpenseByID(ctx context.Context, id, organizationID uuid.UUID) (*models.ExpenseResponse, error)
+	ListExpenses(ctx context.Context, organizationID uuid.UUID, filters map[string]interface{}, page, limit int) ([]*models.ExpenseResponse, int, error)
+}
+
+type ExpenseProcessorImpl struct {
+	expenseRepo ExpenseRepository
+}
+
+func NewExpenseProcessorImpl(expenseRepo ExpenseRepository) *ExpenseProcessorImpl {
+	return &ExpenseProcessorImpl{
+		expenseRepo: expenseRepo,
+	}
+}
+
+func (p *ExpenseProcessorImpl) CreateExpense(ctx context.Context, organizationID uuid.UUID, req *models.CreateExpenseRequest) (*models.ExpenseResponse, error) {
+	outletID, err := uuid.Parse(req.OutletID)
+	if err != nil {
+		return nil, fmt.Errorf("invalid outlet_id: %w", err)
+	}
+
+	transactionDate, err := time.Parse("2006-01-02", req.TransactionDate)
+	if err != nil {
+		return nil, fmt.Errorf("invalid transaction_date format, expected YYYY-MM-DD: %w", err)
+	}
+
+	status := string(constants.ExpenseStatusDraft)
+	if req.Status != nil {
+		status = *req.Status
+	}
+
+	expenseEntity := &entities.Expense{
+		OrganizationID:  organizationID,
+		OutletID:        outletID,
+		Receiver:        req.Receiver,
+		TransactionDate: transactionDate,
+		CodeNumber:      req.CodeNumber,
+		Status:          status,
+		Description:     req.Description,
+		Tax:             req.Tax,
+		Total:           req.Total,
+	}
+
+	err = p.expenseRepo.Create(ctx, expenseEntity)
+	if err != nil {
+		return nil, fmt.Errorf("failed to create expense: %w", err)
+	}
+
+	for _, itemReq := range req.Items {
+		chartOfAccountID, err := uuid.Parse(itemReq.ChartOfAccountID)
+		if err != nil {
+			return nil, fmt.Errorf("invalid chart_of_account_id for item: %w", err)
+		}
+
+		itemEntity := &entities.ExpenseItem{
+			ExpenseID:        expenseEntity.ID,
+			ChartOfAccountID: chartOfAccountID,
+			Item:             itemReq.Item,
+			Description:      itemReq.Description,
+			Amount:           itemReq.Amount,
+		}
+
+		err = p.expenseRepo.CreateItem(ctx, itemEntity)
+		if err != nil {
+			return nil, fmt.Errorf("failed to create expense item: %w", err)
+		}
+	}
+
+	created, err := p.expenseRepo.GetByID(ctx, expenseEntity.ID)
+	if err != nil {
+		return mappers.ExpenseEntityToResponse(expenseEntity), nil
+	}
+
+	return mappers.ExpenseEntityToResponse(created), nil
+}
+
+func (p *ExpenseProcessorImpl) UpdateExpense(ctx context.Context, id, organizationID uuid.UUID, req *models.UpdateExpenseRequest) (*models.ExpenseResponse, error) {
+	expenseEntity, err := p.expenseRepo.GetByIDAndOrganizationID(ctx, id, organizationID)
+	if err != nil {
+		return nil, fmt.Errorf("expense not found: %w", err)
+	}
+
+	if req.Receiver != nil {
+		expenseEntity.Receiver = *req.Receiver
+	}
+	if req.TransactionDate != nil {
+		parsedDate, err := time.Parse("2006-01-02", *req.TransactionDate)
+		if err != nil {
+			return nil, fmt.Errorf("invalid transaction_date format, expected YYYY-MM-DD: %w", err)
+		}
+		expenseEntity.TransactionDate = parsedDate
+	}
+	if req.CodeNumber != nil {
+		expenseEntity.CodeNumber = *req.CodeNumber
+	}
+	if req.Status != nil {
+		expenseEntity.Status = *req.Status
+	}
+	if req.OutletID != nil {
+		outletID, err := uuid.Parse(*req.OutletID)
+		if err != nil {
+			return nil, fmt.Errorf("invalid outlet_id: %w", err)
+		}
+		expenseEntity.OutletID = outletID
+	}
+	if req.Description != nil {
+		expenseEntity.Description = req.Description
+	}
+	if req.Tax != nil {
+		expenseEntity.Tax = *req.Tax
+	}
+	if req.Total != nil {
+		expenseEntity.Total = *req.Total
+	}
+	if req.Reserved1 != nil {
+		expenseEntity.Reserved1 = req.Reserved1
+	}
+
+	if req.Items != nil {
+		err = p.expenseRepo.DeleteItemsByExpenseID(ctx, expenseEntity.ID)
+		if err != nil {
+			return nil, fmt.Errorf("failed to delete existing items: %w", err)
+		}
+
+		for _, itemReq := range req.Items {
+			chartOfAccountID := uuid.Nil
+			if itemReq.ChartOfAccountID != nil {
+				chartOfAccountID, err = uuid.Parse(*itemReq.ChartOfAccountID)
+				if err != nil {
+					return nil, fmt.Errorf("invalid chart_of_account_id for item: %w", err)
+				}
+			}
+
+			amount := 0.0
+			if itemReq.Amount != nil {
+				amount = *itemReq.Amount
+			}
+			item := ""
+			if itemReq.Item != nil {
+				item = *itemReq.Item
+			}
+
+			itemEntity := &entities.ExpenseItem{
+				ExpenseID:        expenseEntity.ID,
+				ChartOfAccountID: chartOfAccountID,
+				Item:             item,
+				Description:      itemReq.Description,
+				Amount:           amount,
+			}
+
+			err = p.expenseRepo.CreateItem(ctx, itemEntity)
+			if err != nil {
+				return nil, fmt.Errorf("failed to create expense item: %w", err)
+			}
+		}
+	}
+
+	err = p.expenseRepo.Update(ctx, expenseEntity)
+	if err != nil {
+		return nil, fmt.Errorf("failed to update expense: %w", err)
+	}
+
+	updated, err := p.expenseRepo.GetByID(ctx, id)
+	if err != nil {
+		return mappers.ExpenseEntityToResponse(expenseEntity), nil
+	}
+
+	return mappers.ExpenseEntityToResponse(updated), nil
+}
+
+func (p *ExpenseProcessorImpl) DeleteExpense(ctx context.Context, id, organizationID uuid.UUID) error {
+	_, err := p.expenseRepo.GetByIDAndOrganizationID(ctx, id, organizationID)
+	if err != nil {
+		return fmt.Errorf("expense not found: %w", err)
+	}
+
+	err = p.expenseRepo.Delete(ctx, id)
+	if err != nil {
+		return fmt.Errorf("failed to delete expense: %w", err)
+	}
+
+	return nil
+}
+
+func (p *ExpenseProcessorImpl) GetExpenseByID(ctx context.Context, id, organizationID uuid.UUID) (*models.ExpenseResponse, error) {
+	expenseEntity, err := p.expenseRepo.GetByIDAndOrganizationID(ctx, id, organizationID)
+	if err != nil {
+		return nil, fmt.Errorf("expense not found: %w", err)
+	}
+
+	return mappers.ExpenseEntityToResponse(expenseEntity), nil
+}
+
+func (p *ExpenseProcessorImpl) ListExpenses(ctx context.Context, organizationID uuid.UUID, filters map[string]interface{}, page, limit int) ([]*models.ExpenseResponse, int, error) {
+	offset := (page - 1) * limit
+	expenseEntities, total, err := p.expenseRepo.List(ctx, organizationID, filters, limit, offset)
+	if err != nil {
+		return nil, 0, fmt.Errorf("failed to list expenses: %w", err)
+	}
+
+	expenseResponses := mappers.ExpenseEntitiesToResponses(expenseEntities)
+	totalPages := int((total + int64(limit) - 1) / int64(limit))
+
+	return expenseResponses, totalPages, nil
+}

internal/processor/expense_processor_test.go

@@ -0,0 +1,136 @@
+package processor
+
+import (
+	"context"
+	"testing"
+
+	"apskel-pos-be/internal/entities"
+	"apskel-pos-be/internal/models"
+
+	"github.com/google/uuid"
+	"github.com/stretchr/testify/require"
+)
+
+type expenseRepositoryCaptureStub struct {
+	createdExpense *entities.Expense
+	createdItems   []*entities.ExpenseItem
+}
+
+func (s *expenseRepositoryCaptureStub) Create(_ context.Context, expense *entities.Expense) error {
+	if expense.ID == uuid.Nil {
+		expense.ID = uuid.New()
+	}
+	s.createdExpense = expense
+	return nil
+}
+
+func (s *expenseRepositoryCaptureStub) GetByID(context.Context, uuid.UUID) (*entities.Expense, error) {
+	if s.createdExpense == nil {
+		return nil, nil
+	}
+	items := make([]entities.ExpenseItem, len(s.createdItems))
+	for i, item := range s.createdItems {
+		items[i] = *item
+	}
+	s.createdExpense.Items = items
+	return s.createdExpense, nil
+}
+
+func (*expenseRepositoryCaptureStub) GetByIDAndOrganizationID(context.Context, uuid.UUID, uuid.UUID) (*entities.Expense, error) {
+	return nil, nil
+}
+func (*expenseRepositoryCaptureStub) Update(context.Context, *entities.Expense) error { return nil }
+func (*expenseRepositoryCaptureStub) Delete(context.Context, uuid.UUID) error         { return nil }
+func (*expenseRepositoryCaptureStub) List(context.Context, uuid.UUID, map[string]interface{}, int, int) ([]*entities.Expense, int64, error) {
+	return nil, 0, nil
+}
+func (s *expenseRepositoryCaptureStub) CreateItem(_ context.Context, item *entities.ExpenseItem) error {
+	if item.ID == uuid.Nil {
+		item.ID = uuid.New()
+	}
+	s.createdItems = append(s.createdItems, item)
+	return nil
+}
+func (*expenseRepositoryCaptureStub) DeleteItemsByExpenseID(context.Context, uuid.UUID) error {
+	return nil
+}
+
+func TestExpenseProcessorCreatePersistsItemName(t *testing.T) {
+	repo := &expenseRepositoryCaptureStub{}
+	p := NewExpenseProcessorImpl(repo)
+	chartOfAccountID := uuid.New()
+
+	resp, err := p.CreateExpense(context.Background(), uuid.New(), &models.CreateExpenseRequest{
+		Receiver:        "Cashier",
+		TransactionDate: "2026-05-29",
+		CodeNumber:      "EXP-001",
+		OutletID:        uuid.NewString(),
+		Total:           10000,
+		Items: []models.CreateExpenseItemRequest{
+			{
+				ChartOfAccountID: chartOfAccountID.String(),
+				Item:             "Cleaning supplies",
+				Amount:           10000,
+			},
+		},
+	})
+
+	require.NoError(t, err)
+	require.NotNil(t, resp)
+	require.Len(t, repo.createdItems, 1)
+	require.Equal(t, "Cleaning supplies", repo.createdItems[0].Item)
+	require.Len(t, resp.Items, 1)
+	require.Equal(t, "Cleaning supplies", resp.Items[0].Item)
+}
+
+func TestExpenseProcessorCreateDefaultsStatusToDraft(t *testing.T) {
+	repo := &expenseRepositoryCaptureStub{}
+	p := NewExpenseProcessorImpl(repo)
+
+	resp, err := p.CreateExpense(context.Background(), uuid.New(), &models.CreateExpenseRequest{
+		Receiver:        "Cashier",
+		TransactionDate: "2026-05-29",
+		CodeNumber:      "EXP-001",
+		OutletID:        uuid.NewString(),
+		Total:           10000,
+		Items: []models.CreateExpenseItemRequest{
+			{
+				ChartOfAccountID: uuid.NewString(),
+				Item:             "Cleaning supplies",
+				Amount:           10000,
+			},
+		},
+	})
+
+	require.NoError(t, err)
+	require.NotNil(t, resp)
+	require.Equal(t, "draft", repo.createdExpense.Status)
+	require.Equal(t, "draft", resp.Status)
+}
+
+func TestExpenseProcessorCreatePersistsProvidedStatus(t *testing.T) {
+	repo := &expenseRepositoryCaptureStub{}
+	p := NewExpenseProcessorImpl(repo)
+	status := "approved"
+
+	resp, err := p.CreateExpense(context.Background(), uuid.New(), &models.CreateExpenseRequest{
+		Receiver:        "Cashier",
+		TransactionDate: "2026-05-29",
+		CodeNumber:      "EXP-001",
+		OutletID:        uuid.NewString(),
+		Status:          &status,
+		Total:           10000,
+		Items: []models.CreateExpenseItemRequest{
+			{
+				ChartOfAccountID: uuid.NewString(),
+				Item:             "Cleaning supplies",
+				Amount:           10000,
+			},
+		},
+	})
+
+	require.NoError(t, err)
+	require.NotNil(t, resp)
+	require.Equal(t, "approved", repo.createdExpense.Status)
+	require.Equal(t, "approved", resp.Status)
+}

internal/processor/expense_repository.go

@@ -0,0 +1,19 @@
+package processor
+
+import (
+	"apskel-pos-be/internal/entities"
+	"context"
+
+	"github.com/google/uuid"
+)
+
+type ExpenseRepository interface {
+	Create(ctx context.Context, expense *entities.Expense) error
+	GetByID(ctx context.Context, id uuid.UUID) (*entities.Expense, error)
+	GetByIDAndOrganizationID(ctx context.Context, id, organizationID uuid.UUID) (*entities.Expense, error)
+	Update(ctx context.Context, expense *entities.Expense) error
+	Delete(ctx context.Context, id uuid.UUID) error
+	List(ctx context.Context, organizationID uuid.UUID, filters map[string]interface{}, limit, offset int) ([]*entities.Expense, int64, error)
+	CreateItem(ctx context.Context, item *entities.ExpenseItem) error
+	DeleteItemsByExpenseID(ctx context.Context, expenseID uuid.UUID) error
+}

internal/processor/order_processor.go

@@ -1,7 +1,6 @@
 package processor
 
 import (
-	"apskel-pos-be/internal/constants"
 	"context"
 	"errors"
 	"fmt"
@@ -339,7 +338,7 @@ func (p *OrderProcessorImpl) AddToOrder(ctx context.Context, orderID uuid.UUID,
 			ProductID:        itemReq.ProductID,
 			ProductVariantID: itemReq.ProductVariantID,
 			Quantity:         itemReq.Quantity,
-			UnitPrice:        unitPrice, // Use price from database
+			UnitPrice:        unitPrice,
 			TotalPrice:       itemTotalPrice,
 			UnitCost:         unitCost,
 			TotalCost:        itemTotalCost,
@@ -388,31 +387,10 @@ func (p *OrderProcessorImpl) AddToOrder(ctx context.Context, orderID uuid.UUID,
 			return nil, fmt.Errorf("failed to create order item: %w", err)
 		}
 
-		itemResponse := models.OrderItemResponse{
-			ID:                  orderItem.ID,
-			OrderID:             orderItem.OrderID,
-			ProductID:           orderItem.ProductID,
-			ProductVariantID:    orderItem.ProductVariantID,
-			Quantity:            orderItem.Quantity,
-			UnitPrice:           orderItem.UnitPrice,
-			TotalPrice:          orderItem.TotalPrice,
-			UnitCost:            orderItem.UnitCost,
-			TotalCost:           orderItem.TotalCost,
-			RefundAmount:        orderItem.RefundAmount,
-			RefundQuantity:      orderItem.RefundQuantity,
-			IsPartiallyRefunded: orderItem.IsPartiallyRefunded,
-			IsFullyRefunded:     orderItem.IsFullyRefunded,
-			RefundReason:        orderItem.RefundReason,
-			RefundedAt:          orderItem.RefundedAt,
-			RefundedBy:          orderItem.RefundedBy,
-			Modifiers:           []map[string]interface{}(orderItem.Modifiers),
-			Notes:               orderItem.Notes,
-			Metadata:            map[string]interface{}(orderItem.Metadata),
-			Status:              constants.OrderItemStatus(orderItem.Status),
-			CreatedAt:           orderItem.CreatedAt,
-			UpdatedAt:           orderItem.UpdatedAt,
+		itemResponse := mappers.OrderItemEntityToResponse(orderItem, order.OutletID)
+		if itemResponse != nil {
+			addedItemResponses = append(addedItemResponses, *itemResponse)
 		}
-		addedItemResponses = append(addedItemResponses, itemResponse)
 	}
 
 	orderWithRelations, err := p.orderRepo.GetWithRelations(ctx, orderID)
@@ -616,6 +594,10 @@ func (p *OrderProcessorImpl) VoidOrder(ctx context.Context, req *models.VoidOrde
 				return fmt.Errorf("order item does not belong to this order")
 			}
 
+			if orderItem.Status == entities.OrderItemStatusCancelled {
+				return fmt.Errorf("order item %s is already cancelled", orderItemID)
+			}
+
 			if itemVoid.Quantity > orderItem.Quantity {
 				return fmt.Errorf("void quantity cannot exceed original quantity for item %d", itemVoid.OrderItemID)
 			}
@@ -636,9 +618,15 @@ func (p *OrderProcessorImpl) VoidOrder(ctx context.Context, req *models.VoidOrde
 			return fmt.Errorf("outlet not found: %w", err)
 		}
 
+		// Reload order to get latest state
+		order, err = p.orderRepo.GetByID(ctx, req.OrderID)
+		if err != nil {
+			return fmt.Errorf("failed to reload order: %w", err)
+		}
+
 		order.Subtotal -= totalVoidedAmount
 		order.TotalCost -= totalVoidedCost
-		order.TaxAmount = order.Subtotal * outlet.TaxRate // Recalculate tax using outlet's tax rate
+		order.TaxAmount = order.Subtotal * outlet.TaxRate
 		order.TotalAmount = order.Subtotal + order.TaxAmount - order.DiscountAmount
 
 		if err := p.orderRepo.Update(ctx, order); err != nil {

internal/processor/product_outlet_price_processor.go

@@ -46,9 +46,10 @@ func (p *ProductOutletPriceProcessorImpl) Upsert(ctx context.Context, req *model
 	}
 
 	entity := &entities.ProductOutletPrice{
-		ProductID: req.ProductID,
-		OutletID:  req.OutletID,
-		Price:     req.Price,
+		ProductID:      req.ProductID,
+		OutletID:       req.OutletID,
+		Price:          req.Price,
+		PrintToChecker: req.PrintToChecker,
 	}
 
 	if err := p.repo.Upsert(ctx, entity); err != nil {

internal/processor/product_processor.go

@@ -5,6 +5,7 @@ import (
 	"fmt"
 
 	"apskel-pos-be/internal/entities"
+	"apskel-pos-be/internal/logger"
 	"apskel-pos-be/internal/mappers"
 	"apskel-pos-be/internal/models"
 	"apskel-pos-be/internal/repository"
@@ -39,6 +40,7 @@ type ProductRepository interface {
 	ExistsBySKU(ctx context.Context, organizationID uuid.UUID, sku string, excludeID *uuid.UUID) (bool, error)
 	GetByName(ctx context.Context, organizationID uuid.UUID, name string) (*entities.Product, error)
 	ExistsByName(ctx context.Context, organizationID uuid.UUID, name string, excludeID *uuid.UUID) (bool, error)
+	ExistsByNameInOutlet(ctx context.Context, organizationID uuid.UUID, outletID uuid.UUID, name string, excludeID *uuid.UUID) (bool, error)
 	UpdateActiveStatus(ctx context.Context, id uuid.UUID, isActive bool) error
 	GetLowCostProducts(ctx context.Context, organizationID uuid.UUID, maxCost float64) ([]*entities.Product, error)
 }
@@ -79,12 +81,12 @@ func (p *ProductProcessorImpl) CreateProduct(ctx context.Context, req *models.Cr
 		}
 	}
 
-	exists, err := p.productRepo.ExistsByName(ctx, req.OrganizationID, req.Name, nil)
+	exists, err := p.productRepo.ExistsByNameInOutlet(ctx, req.OrganizationID, req.OutletID, req.Name, nil)
 	if err != nil {
 		return nil, fmt.Errorf("failed to check product name uniqueness: %w", err)
 	}
 	if exists {
-		return nil, fmt.Errorf("product with name '%s' already exists for this organization", req.Name)
+		return nil, fmt.Errorf("product with name '%s' already exists for this outlet", req.Name)
 	}
 
 	productEntity := mappers.CreateProductRequestToEntity(req)
@@ -122,6 +124,23 @@ func (p *ProductProcessorImpl) CreateProduct(ctx context.Context, req *models.Cr
 		}
 	}
 
+	// Upsert outlet-specific price if outlet context is present
+	if req.OutletID != uuid.Nil {
+		printToChecker := true // default
+		if req.PrintToChecker != nil {
+			printToChecker = *req.PrintToChecker
+		}
+		outletPriceEntity := &entities.ProductOutletPrice{
+			ProductID:      productEntity.ID,
+			OutletID:       req.OutletID,
+			Price:          req.Price,
+			PrintToChecker: printToChecker,
+		}
+		if err := p.outletPriceRepo.Upsert(ctx, outletPriceEntity); err != nil {
+			return nil, fmt.Errorf("failed to assign outlet price: %w", err)
+		}
+	}
+
 	productWithCategory, err := p.productRepo.GetWithCategory(ctx, productEntity.ID)
 	if err != nil {
 		return nil, fmt.Errorf("failed to retrieve created product: %w", err)
@@ -161,12 +180,12 @@ func (p *ProductProcessorImpl) UpdateProduct(ctx context.Context, id uuid.UUID,
 	}
 
 	if req.Name != nil && *req.Name != existingProduct.Name {
-		exists, err := p.productRepo.ExistsByName(ctx, existingProduct.OrganizationID, *req.Name, &id)
+		exists, err := p.productRepo.ExistsByNameInOutlet(ctx, existingProduct.OrganizationID, req.OutletID, *req.Name, &id)
 		if err != nil {
 			return nil, fmt.Errorf("failed to check product name uniqueness: %w", err)
 		}
 		if exists {
-			return nil, fmt.Errorf("product with name '%s' already exists for this organization", *req.Name)
+			return nil, fmt.Errorf("product with name '%s' already exists for this outlet", *req.Name)
 		}
 	}
 
@@ -183,6 +202,41 @@ func (p *ProductProcessorImpl) UpdateProduct(ctx context.Context, id uuid.UUID,
 		}
 	}
 
+	// Upsert outlet-specific price if outlet context is present and price or print_to_checker is provided
+	if req.OutletID != uuid.Nil && (req.Price != nil || req.PrintToChecker != nil) {
+		// Fetch existing outlet price to use as fallback for fields not provided
+		existing, _ := p.outletPriceRepo.GetByProductAndOutlet(ctx, id, req.OutletID)
+
+		price := float64(0)
+		if existing != nil {
+			price = existing.Price
+		}
+		if req.Price != nil {
+			price = *req.Price
+		}
+
+		printToChecker := true // default
+		if existing != nil {
+			printToChecker = existing.PrintToChecker
+		}
+		if req.PrintToChecker != nil {
+			printToChecker = *req.PrintToChecker
+		}
+
+		outletPriceEntity := &entities.ProductOutletPrice{
+			ProductID:      id,
+			OutletID:       req.OutletID,
+			Price:          price,
+			PrintToChecker: printToChecker,
+		}
+		logger.FromContext(ctx).Infof("ProductProcessor::UpdateProduct -> upserting outlet price: productID=%s outletID=%s price=%f printToChecker=%v", id, req.OutletID, price, printToChecker)
+		if err := p.outletPriceRepo.Upsert(ctx, outletPriceEntity); err != nil {
+			return nil, fmt.Errorf("failed to assign outlet price: %w", err)
+		}
+	} else {
+		logger.FromContext(ctx).Infof("ProductProcessor::UpdateProduct -> skipping outlet price upsert: outletID=%s price=%v printToChecker=%v", req.OutletID, req.Price, req.PrintToChecker)
+	}
+
 	productWithCategory, err := p.productRepo.GetWithCategory(ctx, id)
 	if err != nil {
 		return nil, fmt.Errorf("failed to retrieve updated product: %w", err)
@@ -231,6 +285,7 @@ func (p *ProductProcessorImpl) GetProductByID(ctx context.Context, id uuid.UUID,
 		outletPrice, err := p.outletPriceRepo.GetByProductAndOutlet(ctx, id, outletID)
 		if err == nil {
 			response.OutletPrice = &outletPrice.Price
+			response.PrintToChecker = outletPrice.PrintToChecker
 		}
 	} else {
 		// No outlet context — return all outlet prices for this product
@@ -239,9 +294,10 @@ func (p *ProductProcessorImpl) GetProductByID(ctx context.Context, id uuid.UUID,
 			prices := make([]models.OutletPrice, len(outletPrices))
 			for i, op := range outletPrices {
 				prices[i] = models.OutletPrice{
-					OutletID:   op.OutletID,
-					OutletName: op.Outlet.Name,
-					Price:      op.Price,
+					OutletID:       op.OutletID,
+					OutletName:     op.Outlet.Name,
+					Price:          op.Price,
+					PrintToChecker: op.PrintToChecker,
 				}
 			}
 			response.OutletPrices = prices
@@ -278,10 +334,35 @@ func (p *ProductProcessorImpl) ListProducts(ctx context.Context, filters map[str
 	}
 
 	responses := make([]models.ProductResponse, len(productEntities))
-	for i, entity := range productEntities {
-		response := mappers.ProductEntityToResponse(entity)
-		if response != nil {
-			responses[i] = *response
+	if outletID != uuid.Nil && len(productEntities) > 0 {
+		// Bulk-fetch outlet prices to populate OutletPrice and PrintToChecker per product
+		productIDs := make([]uuid.UUID, len(productEntities))
+		for i, e := range productEntities {
+			productIDs[i] = e.ID
+		}
+		outletPrices, opErr := p.outletPriceRepo.GetByProductsAndOutlet(ctx, productIDs, outletID)
+		priceMap := make(map[uuid.UUID]*entities.ProductOutletPrice)
+		if opErr == nil {
+			for _, op := range outletPrices {
+				priceMap[op.ProductID] = op
+			}
+		}
+		for i, entity := range productEntities {
+			response := mappers.ProductEntityToResponse(entity)
+			if response != nil {
+				if op, ok := priceMap[entity.ID]; ok {
+					response.OutletPrice = &op.Price
+					response.PrintToChecker = op.PrintToChecker
+				}
+				responses[i] = *response
+			}
+		}
+	} else {
+		for i, entity := range productEntities {
+			response := mappers.ProductEntityToResponse(entity)
+			if response != nil {
+				responses[i] = *response
+			}
 		}
 	}
 

internal/processor/purchase_order_processor.go

@@ -175,7 +175,7 @@ func (p *PurchaseOrderProcessorImpl) UpdatePurchaseOrder(ctx context.Context, id
 		poEntity.TransactionDate = *req.TransactionDate
 	}
 	if req.DueDate != nil {
-		poEntity.DueDate = *req.DueDate
+		poEntity.DueDate = req.DueDate
 	}
 	if req.Reference != nil {
 		poEntity.Reference = req.Reference

internal/repository/analytics_repository.go

@@ -284,6 +284,7 @@ func (r *AnalyticsRepositoryImpl) GetProductAnalytics(ctx context.Context, organ
 		Select(`
 			p.id as product_id,
 			p.name as product_name,
+			p.price as product_price,
 			c.id as category_id,
 			c.name as category_name,
 			c.order as category_order,
@@ -342,7 +343,7 @@ func (r *AnalyticsRepositoryImpl) GetProductAnalytics(ctx context.Context, organ
 	query = r.resolveOutletID(query, outletID, "o.outlet_id")
 
 	err := query.
-		Group("p.id, p.name, p.cost, c.id, c.name, c.order, mahpp.hpp_per_unit").
+		Group("p.id, p.name, p.price, p.cost, c.id, c.name, c.order, mahpp.hpp_per_unit").
 		Order("revenue DESC").
 		Limit(limit).
 		Scan(&results).Error
@@ -433,38 +434,40 @@ func (r *AnalyticsRepositoryImpl) GetDashboardOverview(ctx context.Context, orga
 }
 
 func (r *AnalyticsRepositoryImpl) GetProfitLossAnalytics(ctx context.Context, organizationID uuid.UUID, outletID *uuid.UUID, dateFrom, dateTo time.Time, groupBy string) (*entities.ProfitLossAnalytics, error) {
-	// Summary query
-	var summary entities.ProfitLossSummary
+	mtdStart := time.Date(dateTo.Year(), dateTo.Month(), 1, 0, 0, 0, 0, dateTo.Location())
+	todayStart := time.Date(dateTo.Year(), dateTo.Month(), dateTo.Day(), 0, 0, 0, 0, dateTo.Location())
+	todayEnd := todayStart.Add(24 * time.Hour).Add(-time.Nanosecond)
 
+	var summary entities.ProfitLossSummary
 	summaryQuery := r.db.WithContext(ctx).
 		Table("orders o").
 		Select(`
 			COALESCE(SUM(o.total_amount), 0) as total_revenue,
 			COALESCE(SUM(o.total_cost), 0) as total_cost,
 			COALESCE(SUM(o.total_amount - o.total_cost), 0) as gross_profit,
-			CASE 
-				WHEN SUM(o.total_amount) > 0 
-				THEN (SUM(o.total_amount - o.total_cost) / SUM(o.total_amount)) * 100 
-				ELSE 0 
+			CASE
+				WHEN SUM(o.total_amount) > 0
+				THEN (SUM(o.total_amount - o.total_cost) / SUM(o.total_amount)) * 100
+				ELSE 0
 			END as gross_profit_margin,
 			COALESCE(SUM(o.tax_amount), 0) as total_tax,
 			COALESCE(SUM(o.discount_amount), 0) as total_discount,
 			COALESCE(SUM(o.total_amount - o.total_cost - o.discount_amount), 0) as net_profit,
-			CASE 
-				WHEN SUM(o.total_amount) > 0 
-				THEN (SUM(o.total_amount - o.total_cost - o.discount_amount) / SUM(o.total_amount)) * 100 
-				ELSE 0 
+			CASE
+				WHEN SUM(o.total_amount) > 0
+				THEN (SUM(o.total_amount - o.total_cost - o.discount_amount) / SUM(o.total_amount)) * 100
+				ELSE 0
 			END as net_profit_margin,
 			COUNT(o.id) as total_orders,
-			CASE 
-				WHEN COUNT(o.id) > 0 
-				THEN SUM(o.total_amount - o.total_cost - o.discount_amount) / COUNT(o.id) 
-				ELSE 0 
+			CASE
+				WHEN COUNT(o.id) > 0
+				THEN SUM(o.total_amount - o.total_cost - o.discount_amount) / COUNT(o.id)
+				ELSE 0
 			END as average_profit,
-			CASE 
-				WHEN SUM(o.total_cost) > 0 
-				THEN (SUM(o.total_amount - o.total_cost) / SUM(o.total_cost)) * 100 
-				ELSE 0 
+			CASE
+				WHEN SUM(o.total_cost) > 0
+				THEN (SUM(o.total_amount - o.total_cost) / SUM(o.total_cost)) * 100
+				ELSE 0
 			END as profitability_ratio
 		`).
 		Where("o.organization_id = ?", organizationID).
@@ -472,15 +475,11 @@ func (r *AnalyticsRepositoryImpl) GetProfitLossAnalytics(ctx context.Context, or
 		Where("o.payment_status = ?", entities.PaymentStatusCompleted).
 		Where("o.is_void = false AND o.is_refund = false").
 		Where("o.created_at >= ? AND o.created_at <= ?", dateFrom, dateTo)
-
 	summaryQuery = r.resolveOutletID(summaryQuery, outletID, "o.outlet_id")
-
-	err := summaryQuery.Scan(&summary).Error
-	if err != nil {
+	if err := summaryQuery.Scan(&summary).Error; err != nil {
 		return nil, err
 	}
 
-	// Time series data query
 	var timeFormat string
 	switch groupBy {
 	case "hour":
@@ -489,12 +488,11 @@ func (r *AnalyticsRepositoryImpl) GetProfitLossAnalytics(ctx context.Context, or
 		timeFormat = "DATE_TRUNC('week', o.created_at)"
 	case "month":
 		timeFormat = "DATE_TRUNC('month', o.created_at)"
-	default: // day
+	default:
 		timeFormat = "DATE_TRUNC('day', o.created_at)"
 	}
 
 	var data []entities.ProfitLossData
-
 	dataQuery := r.db.WithContext(ctx).
 		Table("orders o").
 		Select(`
@@ -502,18 +500,18 @@ func (r *AnalyticsRepositoryImpl) GetProfitLossAnalytics(ctx context.Context, or
 			COALESCE(SUM(o.total_amount), 0) as revenue,
 			COALESCE(SUM(o.total_cost), 0) as cost,
 			COALESCE(SUM(o.total_amount - o.total_cost), 0) as gross_profit,
-			CASE 
-				WHEN SUM(o.total_amount) > 0 
-				THEN (SUM(o.total_amount - o.total_cost) / SUM(o.total_amount)) * 100 
-				ELSE 0 
+			CASE
+				WHEN SUM(o.total_amount) > 0
+				THEN (SUM(o.total_amount - o.total_cost) / SUM(o.total_amount)) * 100
+				ELSE 0
 			END as gross_profit_margin,
 			COALESCE(SUM(o.tax_amount), 0) as tax,
 			COALESCE(SUM(o.discount_amount), 0) as discount,
 			COALESCE(SUM(o.total_amount - o.total_cost - o.discount_amount), 0) as net_profit,
-			CASE 
-				WHEN SUM(o.total_amount) > 0 
-				THEN (SUM(o.total_amount - o.total_cost - o.discount_amount) / SUM(o.total_amount)) * 100 
-				ELSE 0 
+			CASE
+				WHEN SUM(o.total_amount) > 0
+				THEN (SUM(o.total_amount - o.total_cost - o.discount_amount) / SUM(o.total_amount)) * 100
+				ELSE 0
 			END as net_profit_margin,
 			COUNT(o.id) as orders
 		`).
@@ -524,17 +522,12 @@ func (r *AnalyticsRepositoryImpl) GetProfitLossAnalytics(ctx context.Context, or
 		Where("o.created_at >= ? AND o.created_at <= ?", dateFrom, dateTo).
 		Group(timeFormat).
 		Order(timeFormat)
-
 	dataQuery = r.resolveOutletID(dataQuery, outletID, "o.outlet_id")
-
-	err = dataQuery.Scan(&data).Error
-	if err != nil {
+	if err := dataQuery.Scan(&data).Error; err != nil {
 		return nil, err
 	}
 
-	// Product profit data query
 	var productData []entities.ProductProfitData
-
 	productQuery := r.db.WithContext(ctx).
 		Table("order_items oi").
 		Select(`
@@ -546,10 +539,10 @@ func (r *AnalyticsRepositoryImpl) GetProfitLossAnalytics(ctx context.Context, or
 			SUM(CASE WHEN oi.is_fully_refunded = false THEN oi.total_price - COALESCE(oi.refund_amount, 0) ELSE 0 END) as revenue,
 			SUM(CASE WHEN oi.is_fully_refunded = false THEN oi.total_cost * ((oi.quantity - COALESCE(oi.refund_quantity, 0))::float / NULLIF(oi.quantity, 0)) ELSE 0 END) as cost,
 			SUM(CASE WHEN oi.is_fully_refunded = false THEN (oi.total_price - COALESCE(oi.refund_amount, 0)) - (oi.total_cost * ((oi.quantity - COALESCE(oi.refund_quantity, 0))::float / NULLIF(oi.quantity, 0))) ELSE 0 END) as gross_profit,
-			CASE 
-				WHEN SUM(CASE WHEN oi.is_fully_refunded = false THEN oi.total_price - COALESCE(oi.refund_amount, 0) ELSE 0 END) > 0 
-				THEN (SUM(CASE WHEN oi.is_fully_refunded = false THEN (oi.total_price - COALESCE(oi.refund_amount, 0)) - (oi.total_cost * ((oi.quantity - COALESCE(oi.refund_quantity, 0))::float / NULLIF(oi.quantity, 0))) ELSE 0 END) / SUM(CASE WHEN oi.is_fully_refunded = false THEN oi.total_price - COALESCE(oi.refund_amount, 0) ELSE 0 END)) * 100 
-				ELSE 0 
+			CASE
+				WHEN SUM(CASE WHEN oi.is_fully_refunded = false THEN oi.total_price - COALESCE(oi.refund_amount, 0) ELSE 0 END) > 0
+				THEN (SUM(CASE WHEN oi.is_fully_refunded = false THEN (oi.total_price - COALESCE(oi.refund_amount, 0)) - (oi.total_cost * ((oi.quantity - COALESCE(oi.refund_quantity, 0))::float / NULLIF(oi.quantity, 0))) ELSE 0 END) / SUM(CASE WHEN oi.is_fully_refunded = false THEN oi.total_price - COALESCE(oi.refund_amount, 0) ELSE 0 END)) * 100
+				ELSE 0
 			END as gross_profit_margin,
 			AVG(CASE WHEN oi.is_fully_refunded = false THEN oi.unit_price ELSE NULL END) as average_price,
 			AVG(CASE WHEN oi.is_fully_refunded = false THEN oi.unit_cost ELSE NULL END) as average_cost,
@@ -567,17 +560,124 @@ func (r *AnalyticsRepositoryImpl) GetProfitLossAnalytics(ctx context.Context, or
 		Group("p.id, p.name, c.id, c.name").
 		Order("p.name ASC").
 		Limit(1000)
-
 	productQuery = r.resolveOutletID(productQuery, outletID, "o.outlet_id")
+	if err := productQuery.Scan(&productData).Error; err != nil {
+		return nil, err
+	}
 
-	err = productQuery.Scan(&productData).Error
+	type revenueCostResult struct {
+		Revenue float64
+		Cost    float64
+	}
+
+	var todayRC revenueCostResult
+	todayQuery := r.db.WithContext(ctx).
+		Table("orders o").
+		Select(`
+			COALESCE(SUM(o.total_amount), 0) as revenue,
+			COALESCE(SUM(o.total_cost), 0) as cost
+		`).
+		Where("o.organization_id = ?", organizationID).
+		Where("o.status = ?", entities.OrderStatusCompleted).
+		Where("o.payment_status = ?", entities.PaymentStatusCompleted).
+		Where("o.is_void = false AND o.is_refund = false").
+		Where("o.created_at >= ? AND o.created_at <= ?", todayStart, todayEnd)
+	todayQuery = r.resolveOutletID(todayQuery, outletID, "o.outlet_id")
+	if err := todayQuery.Scan(&todayRC).Error; err != nil {
+		return nil, err
+	}
+
+	var mtdRC revenueCostResult
+	mtdQuery := r.db.WithContext(ctx).
+		Table("orders o").
+		Select(`
+			COALESCE(SUM(o.total_amount), 0) as revenue,
+			COALESCE(SUM(o.total_cost), 0) as cost
+		`).
+		Where("o.organization_id = ?", organizationID).
+		Where("o.status = ?", entities.OrderStatusCompleted).
+		Where("o.payment_status = ?", entities.PaymentStatusCompleted).
+		Where("o.is_void = false AND o.is_refund = false").
+		Where("o.created_at >= ? AND o.created_at <= ?", mtdStart, todayEnd)
+	mtdQuery = r.resolveOutletID(mtdQuery, outletID, "o.outlet_id")
+	if err := mtdQuery.Scan(&mtdRC).Error; err != nil {
+		return nil, err
+	}
+
+	todayExpenseByCategory, err := r.getExpenseByCategory(ctx, organizationID, outletID, todayStart, todayEnd)
+	if err != nil {
+		return nil, err
+	}
+
+	mtdExpenseByCategory, err := r.getExpenseByCategory(ctx, organizationID, outletID, mtdStart, todayEnd)
+	if err != nil {
+		return nil, err
+	}
+
+	opsItems, err := r.getOperationalExpenseItems(ctx, organizationID, outletID, mtdStart, todayEnd)
 	if err != nil {
 		return nil, err
 	}
 
 	return &entities.ProfitLossAnalytics{
-		Summary:     summary,
-		Data:        data,
-		ProductData: productData,
+		Summary:                 summary,
+		Data:                    data,
+		ProductData:             productData,
+		TodayRevenue:            todayRC.Revenue,
+		TodayCost:               todayRC.Cost,
+		MtdRevenue:              mtdRC.Revenue,
+		MtdCost:                 mtdRC.Cost,
+		TodayExpenseByCategory:  todayExpenseByCategory,
+		MtdExpenseByCategory:    mtdExpenseByCategory,
+		OperationalExpenseItems: opsItems,
 	}, nil
 }
+
+func (r *AnalyticsRepositoryImpl) getExpenseByCategory(ctx context.Context, organizationID uuid.UUID, outletID *uuid.UUID, dateFrom, dateTo time.Time) ([]entities.ExpenseCategoryTotal, error) {
+	var results []entities.ExpenseCategoryTotal
+
+	query := r.db.WithContext(ctx).
+		Table("expense_items ei").
+		Select(`COALESCE(parent_coa.name, 'Lain-lain') as category_name, COALESCE(SUM(ei.amount), 0) as amount`).
+		Joins("JOIN expenses e ON ei.expense_id = e.id").
+		Joins("JOIN chart_of_accounts coa ON ei.chart_of_account_id = coa.id").
+		Joins("LEFT JOIN chart_of_accounts parent_coa ON coa.parent_id = parent_coa.id").
+		Where("e.organization_id = ?", organizationID).
+		Where("e.status = ?", "approved").
+		Where("e.transaction_date >= ? AND e.transaction_date <= ?", dateFrom, dateTo)
+
+	if outletID != nil {
+		query = query.Where("e.outlet_id = ?", *outletID)
+	}
+
+	err := query.
+		Group("parent_coa.name").
+		Order("parent_coa.name").
+		Scan(&results).Error
+
+	return results, err
+}
+
+func (r *AnalyticsRepositoryImpl) getOperationalExpenseItems(ctx context.Context, organizationID uuid.UUID, outletID *uuid.UUID, dateFrom, dateTo time.Time) ([]entities.OperationalExpenseItem, error) {
+	var results []entities.OperationalExpenseItem
+
+	query := r.db.WithContext(ctx).
+		Table("expense_items ei").
+		Select(`COALESCE(NULLIF(ei.item, ''), ei.description, coa.name) as item, COALESCE(SUM(ei.amount), 0) as amount`).
+		Joins("JOIN expenses e ON ei.expense_id = e.id").
+		Joins("JOIN chart_of_accounts coa ON ei.chart_of_account_id = coa.id").
+		Where("e.organization_id = ?", organizationID).
+		Where("e.status = ?", "approved").
+		Where("e.transaction_date >= ? AND e.transaction_date <= ?", dateFrom, dateTo)
+
+	if outletID != nil {
+		query = query.Where("e.outlet_id = ?", *outletID)
+	}
+
+	err := query.
+		Group("COALESCE(NULLIF(ei.item, ''), ei.description, coa.name)").
+		Order("amount DESC").
+		Scan(&results).Error
+
+	return results, err
+}

internal/repository/category_repository.go

@@ -72,6 +72,9 @@ func (r *CategoryRepositoryImpl) List(ctx context.Context, filters map[string]in
 		case "search":
 			searchValue := "%" + value.(string) + "%"
 			query = query.Where("name ILIKE ? OR description ILIKE ?", searchValue, searchValue)
+		case "outlet_id":
+			// Include outlet-specific categories AND global categories (outlet_id IS NULL)
+			query = query.Where("outlet_id = ? OR outlet_id IS NULL", value)
 		default:
 			query = query.Where(key+" = ?", value)
 		}

internal/repository/expense_repository.go

@@ -0,0 +1,123 @@
+package repository
+
+import (
+	"context"
+	"strings"
+	"time"
+
+	"github.com/google/uuid"
+
+	"apskel-pos-be/internal/entities"
+
+	"gorm.io/gorm"
+)
+
+type ExpenseRepositoryImpl struct {
+	db *gorm.DB
+}
+
+func NewExpenseRepositoryImpl(db *gorm.DB) *ExpenseRepositoryImpl {
+	return &ExpenseRepositoryImpl{
+		db: db,
+	}
+}
+
+func (r *ExpenseRepositoryImpl) Create(ctx context.Context, expense *entities.Expense) error {
+	return r.db.WithContext(ctx).Create(expense).Error
+}
+
+func (r *ExpenseRepositoryImpl) GetByID(ctx context.Context, id uuid.UUID) (*entities.Expense, error) {
+	var expense entities.Expense
+	err := r.db.WithContext(ctx).
+		Preload("Items.ChartOfAccount").
+		First(&expense, "id = ?", id).Error
+	if err != nil {
+		return nil, err
+	}
+	return &expense, nil
+}
+
+func (r *ExpenseRepositoryImpl) GetByIDAndOrganizationID(ctx context.Context, id, organizationID uuid.UUID) (*entities.Expense, error) {
+	var expense entities.Expense
+	err := r.db.WithContext(ctx).
+		Preload("Items.ChartOfAccount").
+		Where("id = ? AND organization_id = ?", id, organizationID).
+		First(&expense).Error
+	if err != nil {
+		return nil, err
+	}
+	return &expense, nil
+}
+
+func (r *ExpenseRepositoryImpl) Update(ctx context.Context, expense *entities.Expense) error {
+	return r.db.WithContext(ctx).Save(expense).Error
+}
+
+func (r *ExpenseRepositoryImpl) Delete(ctx context.Context, id uuid.UUID) error {
+	return r.db.WithContext(ctx).Delete(&entities.Expense{}, "id = ?", id).Error
+}
+
+func (r *ExpenseRepositoryImpl) List(ctx context.Context, organizationID uuid.UUID, filters map[string]interface{}, limit, offset int) ([]*entities.Expense, int64, error) {
+	var expenses []*entities.Expense
+	var total int64
+
+	query := r.db.WithContext(ctx).Model(&entities.Expense{}).Where("organization_id = ?", organizationID)
+
+	for key, value := range filters {
+		switch key {
+		case "search":
+			if searchStr, ok := value.(string); ok && searchStr != "" {
+				searchPattern := "%" + strings.ToLower(searchStr) + "%"
+				query = query.Where(`
+					LOWER(receiver) LIKE ?
+					OR LOWER(code_number) LIKE ?
+					OR LOWER(description) LIKE ?
+					OR EXISTS (
+						SELECT 1
+						FROM expense_items ei
+						WHERE ei.expense_id = expenses.id
+						  AND LOWER(ei.item) LIKE ?
+					)
+				`, searchPattern, searchPattern, searchPattern, searchPattern)
+			}
+		case "outlet_id":
+			if outletID, ok := value.(uuid.UUID); ok {
+				query = query.Where("outlet_id = ?", outletID)
+			}
+		case "status":
+			if status, ok := value.(string); ok && status != "" {
+				query = query.Where("status = ?", status)
+			}
+		case "start_date":
+			if startDate, ok := value.(time.Time); ok {
+				query = query.Where("transaction_date >= ?", startDate)
+			}
+		case "end_date":
+			if endDate, ok := value.(time.Time); ok {
+				query = query.Where("transaction_date <= ?", endDate)
+			}
+		default:
+			query = query.Where(key+" = ?", value)
+		}
+	}
+
+	if err := query.Count(&total).Error; err != nil {
+		return nil, 0, err
+	}
+
+	err := query.
+		Preload("Items.ChartOfAccount").
+		Order("created_at DESC").
+		Limit(limit).
+		Offset(offset).
+		Find(&expenses).Error
+	return expenses, total, err
+}
+
+func (r *ExpenseRepositoryImpl) CreateItem(ctx context.Context, item *entities.ExpenseItem) error {
+	return r.db.WithContext(ctx).Create(item).Error
+}
+
+func (r *ExpenseRepositoryImpl) DeleteItemsByExpenseID(ctx context.Context, expenseID uuid.UUID) error {
+	return r.db.WithContext(ctx).Delete(&entities.ExpenseItem{}, "expense_id = ?", expenseID).Error
+}

internal/repository/order_repository.go

@@ -60,6 +60,8 @@ func (r *OrderRepositoryImpl) GetWithRelations(ctx context.Context, id uuid.UUID
 		Preload("User").
 		Preload("OrderItems").
 		Preload("OrderItems.Product").
+		Preload("OrderItems.Product.Category").
+		Preload("OrderItems.Product.ProductOutletPrices").
 		Preload("OrderItems.ProductVariant").
 		Preload("Payments").
 		Preload("Payments.PaymentMethod").
@@ -98,36 +100,54 @@ func (r *OrderRepositoryImpl) List(ctx context.Context, filters map[string]inter
 	var orders []*entities.Order
 	var total int64
 
-	query := r.db.WithContext(ctx).Model(&entities.Order{}).
+	// organization_id is mandatory to prevent cross-org data leaks
+	organizationID, ok := filters["organization_id"]
+	if !ok {
+		return nil, 0, fmt.Errorf("organization_id is required for listing orders")
+	}
+
+	baseQuery := r.db.WithContext(ctx).Model(&entities.Order{}).
+		Where("organization_id = ?", organizationID)
+
+	// outlet_id is optional — if present, scope to that outlet; otherwise return all outlets in the org
+	if outletID, exists := filters["outlet_id"]; exists {
+		baseQuery = baseQuery.Where("outlet_id = ?", outletID)
+	}
+
+	for key, value := range filters {
+		switch key {
+		case "organization_id", "outlet_id":
+			// already handled above
+		case "search":
+			searchValue := "%" + value.(string) + "%"
+			baseQuery = baseQuery.Where("order_number ILIKE ?", searchValue)
+		case "date_from":
+			baseQuery = baseQuery.Where("created_at >= ?", value)
+		case "date_to":
+			baseQuery = baseQuery.Where("created_at <= ?", value)
+		default:
+			baseQuery = baseQuery.Where(key+" = ?", value)
+		}
+	}
+
+	// Use separate queries for count and find to avoid GORM state mutation issues
+	if err := baseQuery.Count(&total).Error; err != nil {
+		return nil, 0, err
+	}
+
+	err := baseQuery.
 		Preload("Organization").
 		Preload("Outlet").
 		Preload("User").
 		Preload("OrderItems").
 		Preload("OrderItems.Product").
+		Preload("OrderItems.Product.Category").
+		Preload("OrderItems.Product.ProductOutletPrices").
 		Preload("OrderItems.ProductVariant").
 		Preload("Payments").
 		Preload("Payments.PaymentMethod").
-		Preload("Payments.PaymentOrderItems")
-
-	for key, value := range filters {
-		switch key {
-		case "search":
-			searchValue := "%" + value.(string) + "%"
-			query = query.Where("order_number ILIKE ?", searchValue)
-		case "date_from":
-			query = query.Where("created_at >= ?", value)
-		case "date_to":
-			query = query.Where("created_at <= ?", value)
-		default:
-			query = query.Where(key+" = ?", value)
-		}
-	}
-
-	if err := query.Count(&total).Error; err != nil {
-		return nil, 0, err
-	}
-
-	err := query.Limit(limit).Offset(offset).Order("created_at DESC").Find(&orders).Error
+		Preload("Payments.PaymentOrderItems").
+		Limit(limit).Offset(offset).Order("created_at DESC").Find(&orders).Error
 	return orders, total, err
 }
 
@@ -139,6 +159,8 @@ func (r *OrderRepositoryImpl) ListBySessionID(ctx context.Context, sessionID str
 		Preload("User").
 		Preload("OrderItems").
 		Preload("OrderItems.Product").
+		Preload("OrderItems.Product.Category").
+		Preload("OrderItems.Product.ProductOutletPrices").
 		Preload("OrderItems.ProductVariant").
 		Preload("Payments").
 		Preload("Payments.PaymentMethod").

internal/repository/organization_repository.go

@@ -2,6 +2,8 @@ package repository
 
 import (
 	"context"
+	"time"
+
 	"github.com/google/uuid"
 
 	"apskel-pos-be/internal/entities"
@@ -105,8 +107,34 @@ func (r *OrganizationRepositoryImpl) GetTotalOmset(ctx context.Context, organiza
 	var total float64
 	err := r.db.WithContext(ctx).
 		Table("orders").
-		Where("organization_id = ? AND payment_status = ?", organizationID, "completed").
+		Where("organization_id = ? AND payment_status = ? AND is_void = ? AND is_refund = ?", organizationID, "completed", false, false).
 		Select("COALESCE(SUM(total_amount), 0)").
 		Scan(&total).Error
 	return total, err
 }
+
+// GetTodayOmset returns the total revenue from completed orders for an organization on the current calendar day.
+func (r *OrganizationRepositoryImpl) GetTodayOmset(ctx context.Context, organizationID uuid.UUID) (float64, error) {
+	var total float64
+	err := r.db.WithContext(ctx).
+		Table("orders").
+		Where(
+			"organization_id = ? AND payment_status = ? AND is_void = ? AND is_refund = ? AND created_at >= ? AND created_at < ?",
+			organizationID, "completed", false, false,
+			todayStart(), tomorrowStart(),
+		).
+		Select("COALESCE(SUM(total_amount), 0)").
+		Scan(&total).Error
+	return total, err
+}
+
+// todayStart returns midnight of the current local day.
+func todayStart() time.Time {
+	now := time.Now()
+	return time.Date(now.Year(), now.Month(), now.Day(), 0, 0, 0, 0, now.Location())
+}
+
+// tomorrowStart returns midnight of the next local day.
+func tomorrowStart() time.Time {
+	return todayStart().AddDate(0, 0, 1)
+}

internal/repository/outlet_repository.go

@@ -3,6 +3,7 @@ package repository
 import (
 	"apskel-pos-be/internal/entities"
 	"context"
+	"time"
 
 	"github.com/google/uuid"
 	"gorm.io/gorm"
@@ -103,3 +104,22 @@ func (r *OutletRepositoryImpl) Count(ctx context.Context, filters map[string]int
 	err := query.Count(&count).Error
 	return count, err
 }
+
+// GetTodayOmset returns the total revenue from completed orders for an outlet on the current calendar day.
+func (r *OutletRepositoryImpl) GetTodayOmset(ctx context.Context, outletID uuid.UUID) (float64, error) {
+	var total float64
+	now := time.Now()
+	todayStart := time.Date(now.Year(), now.Month(), now.Day(), 0, 0, 0, 0, now.Location())
+	tomorrowStart := todayStart.AddDate(0, 0, 1)
+
+	err := r.db.WithContext(ctx).
+		Table("orders").
+		Where(
+			"outlet_id = ? AND payment_status = ? AND is_void = ? AND is_refund = ? AND created_at >= ? AND created_at < ?",
+			outletID, "completed", false, false,
+			todayStart, tomorrowStart,
+		).
+		Select("COALESCE(SUM(total_amount), 0)").
+		Scan(&total).Error
+	return total, err
+}

internal/repository/product_outlet_price_repository.go

@@ -7,7 +7,6 @@ import (
 
 	"github.com/google/uuid"
 	"gorm.io/gorm"
-	"gorm.io/gorm/clause"
 )
 
 type ProductOutletPriceRepository interface {
@@ -53,10 +52,18 @@ func (r *ProductOutletPriceRepositoryImpl) GetByOutlet(ctx context.Context, outl
 }
 
 func (r *ProductOutletPriceRepositoryImpl) Upsert(ctx context.Context, price *entities.ProductOutletPrice) error {
-	return r.db.WithContext(ctx).Clauses(clause.OnConflict{
-		Columns:   []clause.Column{{Name: "product_id"}, {Name: "outlet_id"}},
-		DoUpdates: clause.AssignmentColumns([]string{"price", "updated_at"}),
-	}).Create(price).Error
+	if price.ID == uuid.Nil {
+		price.ID = uuid.New()
+	}
+	return r.db.WithContext(ctx).Exec(`
+		INSERT INTO product_outlet_prices (id, product_id, outlet_id, price, print_to_checker, created_at, updated_at)
+		VALUES (?, ?, ?, ?, ?, NOW(), NOW())
+		ON CONFLICT (product_id, outlet_id)
+		DO UPDATE SET
+			price = EXCLUDED.price,
+			print_to_checker = EXCLUDED.print_to_checker,
+			updated_at = NOW()
+	`, price.ID, price.ProductID, price.OutletID, price.Price, price.PrintToChecker).Error
 }
 
 func (r *ProductOutletPriceRepositoryImpl) Delete(ctx context.Context, id uuid.UUID) error {

internal/repository/product_repository.go

@@ -178,6 +178,26 @@ func (r *ProductRepositoryImpl) ExistsByName(ctx context.Context, organizationID
 	return count > 0, err
 }
 
+// ExistsByNameInOutlet checks name uniqueness scoped to a specific outlet via product_outlet_prices.
+// Falls back to organization-scoped check when outletID is zero.
+func (r *ProductRepositoryImpl) ExistsByNameInOutlet(ctx context.Context, organizationID uuid.UUID, outletID uuid.UUID, name string, excludeID *uuid.UUID) (bool, error) {
+	if outletID == uuid.Nil {
+		return r.ExistsByName(ctx, organizationID, name, excludeID)
+	}
+
+	query := r.db.WithContext(ctx).Model(&entities.Product{}).
+		Joins("INNER JOIN product_outlet_prices pop ON pop.product_id = products.id AND pop.outlet_id = ?", outletID).
+		Where("products.organization_id = ? AND products.name = ?", organizationID, name)
+
+	if excludeID != nil {
+		query = query.Where("products.id != ?", *excludeID)
+	}
+
+	var count int64
+	err := query.Count(&count).Error
+	return count > 0, err
+}
+
 func (r *ProductRepositoryImpl) UpdateActiveStatus(ctx context.Context, id uuid.UUID, isActive bool) error {
 	return r.db.WithContext(ctx).Model(&entities.Product{}).
 		Where("id = ?", id).

internal/repository/tx_manager.go

@@ -2,6 +2,7 @@ package repository
 
 import (
 	"context"
+	"database/sql"
 
 	"gorm.io/gorm"
 )
@@ -37,3 +38,15 @@ func (m *TxManager) WithTransaction(ctx context.Context, fn func(ctx context.Con
 		return fn(ctxTx)
 	})
 }
+
+// WithTransactionOptions runs fn inside a DB transaction with custom TxOptions (e.g. isolation level).
+func (m *TxManager) WithTransactionOptions(ctx context.Context, opts *sql.TxOptions, fn func(ctx context.Context) error) error {
+	if m == nil || m.db == nil {
+		return fn(ctx)
+	}
+
+	return m.db.WithContext(ctx).Transaction(func(tx *gorm.DB) error {
+		ctxTx := context.WithValue(ctx, txKey, tx)
+		return fn(ctxTx)
+	}, opts)
+}

internal/router/router.go

@@ -9,6 +9,7 @@ import (
 	"apskel-pos-be/internal/validator"
 
 	"github.com/gin-gonic/gin"
+	"github.com/redis/go-redis/v9"
 )
 
 type Router struct {
@@ -50,11 +51,13 @@ type Router struct {
 	notificationHandler               *handler.NotificationHandler
 	selfOrderHandler                  *handler.SelfOrderHandler
 	productOutletPriceHandler         *handler.ProductOutletPriceHandler
+	expenseHandler                    *handler.ExpenseHandler
 	authMiddleware                    *middleware.AuthMiddleware
 	customerAuthMiddleware            *middleware.CustomerAuthMiddleware
+	redisClient                       *redis.Client
 }
 
-func NewRouter(cfg *config.Config, healthHandler *handler.HealthHandler, authService service.AuthService, authMiddleware *middleware.AuthMiddleware, userService *service.UserServiceImpl, userValidator *validator.UserValidatorImpl, organizationService service.OrganizationService, organizationValidator validator.OrganizationValidator, outletService service.OutletService, outletValidator validator.OutletValidator, outletSettingService service.OutletSettingService, categoryService service.CategoryService, categoryValidator validator.CategoryValidator, productService service.ProductService, productValidator validator.ProductValidator, productVariantService service.ProductVariantService, productVariantValidator validator.ProductVariantValidator, inventoryService service.InventoryService, inventoryValidator validator.InventoryValidator, orderService service.OrderService, orderValidator validator.OrderValidator, fileService service.FileService, fileValidator validator.FileValidator, customerService service.CustomerService, customerValidator validator.CustomerValidator, paymentMethodService service.PaymentMethodService, paymentMethodValidator validator.PaymentMethodValidator, analyticsService *service.AnalyticsServiceImpl, reportService service.ReportService, tableService *service.TableServiceImpl, tableValidator *validator.TableValidator, unitService handler.UnitService, ingredientService handler.IngredientService, productRecipeService service.ProductRecipeService, vendorService service.VendorService, vendorValidator validator.VendorValidator, purchaseOrderService service.PurchaseOrderService, purchaseOrderValidator validator.PurchaseOrderValidator, unitConverterService service.IngredientUnitConverterService, unitConverterValidator validator.IngredientUnitConverterValidator, chartOfAccountTypeService service.ChartOfAccountTypeService, chartOfAccountTypeValidator validator.ChartOfAccountTypeValidator, chartOfAccountService service.ChartOfAccountService, chartOfAccountValidator validator.ChartOfAccountValidator, accountService service.AccountService, accountValidator validator.AccountValidator, orderIngredientTransactionService service.OrderIngredientTransactionService, orderIngredientTransactionValidator validator.OrderIngredientTransactionValidator, gamificationService service.GamificationService, gamificationValidator validator.GamificationValidator, rewardService service.RewardService, rewardValidator validator.RewardValidator, campaignService service.CampaignService, campaignValidator validator.CampaignValidator, customerAuthService service.CustomerAuthService, customerAuthValidator validator.CustomerAuthValidator, customerPointsService service.CustomerPointsService, spinGameService service.SpinGameService, customerAuthMiddleware *middleware.CustomerAuthMiddleware, userDeviceService service.UserDeviceService, userDeviceValidator validator.UserDeviceValidator, notificationService service.NotificationService, notificationValidator validator.NotificationValidator, productOutletPriceService service.ProductOutletPriceService, productOutletPriceValidator validator.ProductOutletPriceValidator, selfOrderHandler *handler.SelfOrderHandler) *Router {
+func NewRouter(cfg *config.Config, healthHandler *handler.HealthHandler, authService service.AuthService, authMiddleware *middleware.AuthMiddleware, userService *service.UserServiceImpl, userValidator *validator.UserValidatorImpl, organizationService service.OrganizationService, organizationValidator validator.OrganizationValidator, outletService service.OutletService, outletValidator validator.OutletValidator, outletSettingService service.OutletSettingService, categoryService service.CategoryService, categoryValidator validator.CategoryValidator, productService service.ProductService, productValidator validator.ProductValidator, productVariantService service.ProductVariantService, productVariantValidator validator.ProductVariantValidator, inventoryService service.InventoryService, inventoryValidator validator.InventoryValidator, orderService service.OrderService, orderValidator validator.OrderValidator, fileService service.FileService, fileValidator validator.FileValidator, customerService service.CustomerService, customerValidator validator.CustomerValidator, paymentMethodService service.PaymentMethodService, paymentMethodValidator validator.PaymentMethodValidator, analyticsService *service.AnalyticsServiceImpl, reportService service.ReportService, tableService *service.TableServiceImpl, tableValidator *validator.TableValidator, unitService handler.UnitService, ingredientService handler.IngredientService, productRecipeService service.ProductRecipeService, vendorService service.VendorService, vendorValidator validator.VendorValidator, purchaseOrderService service.PurchaseOrderService, purchaseOrderValidator validator.PurchaseOrderValidator, unitConverterService service.IngredientUnitConverterService, unitConverterValidator validator.IngredientUnitConverterValidator, chartOfAccountTypeService service.ChartOfAccountTypeService, chartOfAccountTypeValidator validator.ChartOfAccountTypeValidator, chartOfAccountService service.ChartOfAccountService, chartOfAccountValidator validator.ChartOfAccountValidator, accountService service.AccountService, accountValidator validator.AccountValidator, orderIngredientTransactionService service.OrderIngredientTransactionService, orderIngredientTransactionValidator validator.OrderIngredientTransactionValidator, gamificationService service.GamificationService, gamificationValidator validator.GamificationValidator, rewardService service.RewardService, rewardValidator validator.RewardValidator, campaignService service.CampaignService, campaignValidator validator.CampaignValidator, customerAuthService service.CustomerAuthService, customerAuthValidator validator.CustomerAuthValidator, customerPointsService service.CustomerPointsService, spinGameService service.SpinGameService, customerAuthMiddleware *middleware.CustomerAuthMiddleware, userDeviceService service.UserDeviceService, userDeviceValidator validator.UserDeviceValidator, notificationService service.NotificationService, notificationValidator validator.NotificationValidator, productOutletPriceService service.ProductOutletPriceService, productOutletPriceValidator validator.ProductOutletPriceValidator, selfOrderHandler *handler.SelfOrderHandler, expenseService *service.ExpenseServiceImpl, expenseValidator *validator.ExpenseValidatorImpl, redisClient *redis.Client) *Router {
 
 	return &Router{
 		config:                            cfg,
@@ -97,6 +100,8 @@ func NewRouter(cfg *config.Config, healthHandler *handler.HealthHandler, authSer
 		notificationHandler:               handler.NewNotificationHandler(notificationService, notificationValidator),
 		selfOrderHandler:                  selfOrderHandler,
 		productOutletPriceHandler:         handler.NewProductOutletPriceHandler(productOutletPriceService, productOutletPriceValidator),
+		expenseHandler:                    handler.NewExpenseHandler(expenseService, expenseValidator),
+		redisClient:                       redisClient,
 	}
 }
 
@@ -272,19 +277,19 @@ func (r *Router) addAppRoutes(rg *gin.Engine) {
 				orders.GET("", r.orderHandler.ListOrders)
 				orders.GET("/:id", r.orderHandler.GetOrderByID)
 				orders.POST("", r.orderHandler.CreateOrder)
-				orders.POST("/:id/add-items", r.orderHandler.AddToOrder)
+				orders.POST("/:id/add-items", middleware.IdempotencyMiddleware(r.redisClient), r.orderHandler.AddToOrder)
 				orders.PUT("/:id", r.orderHandler.UpdateOrder)
 				orders.PUT("/:id/customer", r.orderHandler.SetOrderCustomer)
-				orders.POST("/void", r.orderHandler.VoidOrder)
-				orders.POST("/:id/refund", r.orderHandler.RefundOrder)
+				orders.POST("/void", middleware.IdempotencyMiddleware(r.redisClient), r.orderHandler.VoidOrder)
+				orders.POST("/:id/refund", middleware.IdempotencyMiddleware(r.redisClient), r.orderHandler.RefundOrder)
 				orders.POST("/split-bill", r.orderHandler.SplitBill)
 			}
 
 			payments := protected.Group("/payments")
 			payments.Use(r.authMiddleware.RequireAdminOrManager())
 			{
-				payments.POST("", r.orderHandler.CreatePayment)
-				payments.POST("/:id/refund", r.orderHandler.RefundPayment)
+				payments.POST("", middleware.IdempotencyMiddleware(r.redisClient), r.orderHandler.CreatePayment)
+				payments.POST("/:id/refund", middleware.IdempotencyMiddleware(r.redisClient), r.orderHandler.RefundPayment)
 			}
 
 			paymentMethods := protected.Group("/payment-methods")
@@ -444,6 +449,16 @@ func (r *Router) addAppRoutes(rg *gin.Engine) {
 				accounts.GET("/:id/balance", r.accountHandler.GetAccountBalance)
 			}
 
+			expenses := protected.Group("/expenses")
+			expenses.Use(r.authMiddleware.RequireAdminOrManager())
+			{
+				expenses.POST("", r.expenseHandler.CreateExpense)
+				expenses.GET("", r.expenseHandler.ListExpenses)
+				expenses.GET("/:id", r.expenseHandler.GetExpense)
+				expenses.PUT("/:id", r.expenseHandler.UpdateExpense)
+				expenses.DELETE("/:id", r.expenseHandler.DeleteExpense)
+			}
+
 			orderIngredientTransactions := protected.Group("/order-ingredient-transactions")
 			orderIngredientTransactions.Use(r.authMiddleware.RequireAdminOrManager())
 			{

internal/service/analytics_service.go

@@ -134,18 +134,6 @@ func (s *AnalyticsServiceImpl) validatePaymentMethodAnalyticsRequest(req *models
 		return fmt.Errorf("date_from cannot be after date_to")
 	}
 
-	if req.GroupBy != "" {
-		validGroupBy := map[string]bool{
-			"day":   true,
-			"hour":  true,
-			"week":  true,
-			"month": true,
-		}
-		if !validGroupBy[req.GroupBy] {
-			return fmt.Errorf("invalid group_by value: %s", req.GroupBy)
-		}
-	}
-
 	return nil
 }
 
@@ -318,8 +306,16 @@ func (s *AnalyticsServiceImpl) validateProfitLossAnalyticsRequest(req *models.Pr
 		return fmt.Errorf("date_from cannot be after date_to")
 	}
 
-	if req.GroupBy != "" && req.GroupBy != "hour" && req.GroupBy != "day" && req.GroupBy != "week" && req.GroupBy != "month" {
-		return fmt.Errorf("invalid group_by value, must be one of: hour, day, week, month")
+	if req.GroupBy != "" {
+		validGroupBy := map[string]bool{
+			"day":   true,
+			"hour":  true,
+			"week":  true,
+			"month": true,
+		}
+		if !validGroupBy[req.GroupBy] {
+			return fmt.Errorf("invalid group_by value: %s", req.GroupBy)
+		}
 	}
 
 	return nil

internal/service/analytics_service_test.go

@@ -119,3 +119,74 @@ func TestAnalyticsServiceGetPurchasingAnalyticsAllowsEmptyGroupBy(t *testing.T)
 	require.NoError(t, err)
 	require.NotNil(t, resp)
 }
+
+func TestAnalyticsServiceGetProfitLossAnalyticsValidation(t *testing.T) {
+	service := NewAnalyticsServiceImpl(analyticsProcessorStub{})
+	now := time.Date(2026, 5, 1, 0, 0, 0, 0, time.UTC)
+
+	tests := []struct {
+		name    string
+		req     *models.ProfitLossAnalyticsRequest
+		wantErr string
+	}{
+		{
+			name: "missing date_from",
+			req: &models.ProfitLossAnalyticsRequest{
+				OrganizationID: uuid.New(),
+				DateTo:         now,
+			},
+			wantErr: "date_from is required",
+		},
+		{
+			name: "missing date_to",
+			req: &models.ProfitLossAnalyticsRequest{
+				OrganizationID: uuid.New(),
+				DateFrom:       now,
+			},
+			wantErr: "date_to is required",
+		},
+		{
+			name: "reversed dates",
+			req: &models.ProfitLossAnalyticsRequest{
+				OrganizationID: uuid.New(),
+				DateFrom:       now.AddDate(0, 0, 1),
+				DateTo:         now,
+			},
+			wantErr: "date_from cannot be after date_to",
+		},
+		{
+			name: "invalid group_by",
+			req: &models.ProfitLossAnalyticsRequest{
+				OrganizationID: uuid.New(),
+				DateFrom:       now,
+				DateTo:         now,
+				GroupBy:        "quarter",
+			},
+			wantErr: "invalid group_by value: quarter",
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			resp, err := service.GetProfitLossAnalytics(context.Background(), tt.req)
+
+			require.Nil(t, resp)
+			require.Error(t, err)
+			require.Contains(t, err.Error(), tt.wantErr)
+		})
+	}
+}
+
+func TestAnalyticsServiceGetProfitLossAnalyticsAllowsEmptyGroupBy(t *testing.T) {
+	service := NewAnalyticsServiceImpl(analyticsProcessorStub{})
+	now := time.Date(2026, 5, 1, 0, 0, 0, 0, time.UTC)
+
+	resp, err := service.GetProfitLossAnalytics(context.Background(), &models.ProfitLossAnalyticsRequest{
+		OrganizationID: uuid.New(),
+		DateFrom:       now,
+		DateTo:         now,
+	})
+
+	require.NoError(t, err)
+	require.Nil(t, resp)
+}

internal/service/category_service.go

@@ -85,6 +85,9 @@ func (s *CategoryServiceImpl) ListCategories(ctx context.Context, req *contract.
 	if req.OrganizationID != nil {
 		filters["organization_id"] = *req.OrganizationID
 	}
+	if req.OutletID != nil {
+		filters["outlet_id"] = *req.OutletID
+	}
 	if req.BusinessType != "" {
 		filters["business_type"] = req.BusinessType
 	}

internal/service/expense_service.go

@@ -0,0 +1,128 @@
+package service
+
+import (
+	"apskel-pos-be/internal/appcontext"
+	"context"
+	"time"
+
+	"apskel-pos-be/internal/constants"
+	"apskel-pos-be/internal/contract"
+	"apskel-pos-be/internal/processor"
+	"apskel-pos-be/internal/transformer"
+
+	"github.com/google/uuid"
+)
+
+type ExpenseService interface {
+	CreateExpense(ctx context.Context, apctx *appcontext.ContextInfo, req *contract.CreateExpenseRequest) *contract.Response
+	UpdateExpense(ctx context.Context, apctx *appcontext.ContextInfo, id uuid.UUID, req *contract.UpdateExpenseRequest) *contract.Response
+	DeleteExpense(ctx context.Context, apctx *appcontext.ContextInfo, id uuid.UUID) *contract.Response
+	GetExpenseByID(ctx context.Context, apctx *appcontext.ContextInfo, id uuid.UUID) *contract.Response
+	ListExpenses(ctx context.Context, apctx *appcontext.ContextInfo, req *contract.ListExpenseRequest) *contract.Response
+}
+
+type ExpenseServiceImpl struct {
+	expenseProcessor processor.ExpenseProcessor
+}
+
+func NewExpenseService(expenseProcessor processor.ExpenseProcessor) *ExpenseServiceImpl {
+	return &ExpenseServiceImpl{
+		expenseProcessor: expenseProcessor,
+	}
+}
+
+func (s *ExpenseServiceImpl) CreateExpense(ctx context.Context, apctx *appcontext.ContextInfo, req *contract.CreateExpenseRequest) *contract.Response {
+	modelReq := transformer.CreateExpenseRequestToModel(req)
+
+	expenseResponse, err := s.expenseProcessor.CreateExpense(ctx, apctx.OrganizationID, modelReq)
+	if err != nil {
+		errorResp := contract.NewResponseError(constants.InternalServerErrorCode, constants.ExpenseServiceEntity, err.Error())
+		return contract.BuildErrorResponse([]*contract.ResponseError{errorResp})
+	}
+
+	contractResponse := transformer.ExpenseModelResponseToResponse(expenseResponse)
+	return contract.BuildSuccessResponse(contractResponse)
+}
+
+func (s *ExpenseServiceImpl) UpdateExpense(ctx context.Context, apctx *appcontext.ContextInfo, id uuid.UUID, req *contract.UpdateExpenseRequest) *contract.Response {
+	modelReq := transformer.UpdateExpenseRequestToModel(req)
+
+	expenseResponse, err := s.expenseProcessor.UpdateExpense(ctx, id, apctx.OrganizationID, modelReq)
+	if err != nil {
+		errorResp := contract.NewResponseError(constants.InternalServerErrorCode, constants.ExpenseServiceEntity, err.Error())
+		return contract.BuildErrorResponse([]*contract.ResponseError{errorResp})
+	}
+
+	contractResponse := transformer.ExpenseModelResponseToResponse(expenseResponse)
+	return contract.BuildSuccessResponse(contractResponse)
+}
+
+func (s *ExpenseServiceImpl) DeleteExpense(ctx context.Context, apctx *appcontext.ContextInfo, id uuid.UUID) *contract.Response {
+	err := s.expenseProcessor.DeleteExpense(ctx, id, apctx.OrganizationID)
+	if err != nil {
+		errorResp := contract.NewResponseError(constants.InternalServerErrorCode, constants.ExpenseServiceEntity, err.Error())
+		return contract.BuildErrorResponse([]*contract.ResponseError{errorResp})
+	}
+
+	return contract.BuildSuccessResponse(map[string]interface{}{
+		"message": "Expense deleted successfully",
+	})
+}
+
+func (s *ExpenseServiceImpl) GetExpenseByID(ctx context.Context, apctx *appcontext.ContextInfo, id uuid.UUID) *contract.Response {
+	expenseResponse, err := s.expenseProcessor.GetExpenseByID(ctx, id, apctx.OrganizationID)
+	if err != nil {
+		errorResp := contract.NewResponseError(constants.InternalServerErrorCode, constants.ExpenseServiceEntity, err.Error())
+		return contract.BuildErrorResponse([]*contract.ResponseError{errorResp})
+	}
+
+	contractResponse := transformer.ExpenseModelResponseToResponse(expenseResponse)
+	return contract.BuildSuccessResponse(contractResponse)
+}
+
+func (s *ExpenseServiceImpl) ListExpenses(ctx context.Context, apctx *appcontext.ContextInfo, req *contract.ListExpenseRequest) *contract.Response {
+	modelReq := transformer.ListExpenseRequestToModel(req)
+
+	filters := make(map[string]interface{})
+	if modelReq.Search != "" {
+		filters["search"] = modelReq.Search
+	}
+	if modelReq.Status != "" {
+		filters["status"] = modelReq.Status
+	}
+	if modelReq.OutletID != "" {
+		outletID, err := uuid.Parse(modelReq.OutletID)
+		if err == nil {
+			filters["outlet_id"] = outletID
+		}
+	}
+	if modelReq.StartDate != "" {
+		if startDate, err := time.Parse("2006-01-02", modelReq.StartDate); err == nil {
+			filters["start_date"] = startDate
+		}
+	}
+	if modelReq.EndDate != "" {
+		if endDate, err := time.Parse("2006-01-02", modelReq.EndDate); err == nil {
+			// include the full end date day
+			filters["end_date"] = endDate.Add(24*time.Hour - time.Nanosecond)
+		}
+	}
+
+	expenses, totalPages, err := s.expenseProcessor.ListExpenses(ctx, apctx.OrganizationID, filters, modelReq.Page, modelReq.Limit)
+	if err != nil {
+		errorResp := contract.NewResponseError(constants.InternalServerErrorCode, constants.ExpenseServiceEntity, err.Error())
+		return contract.BuildErrorResponse([]*contract.ResponseError{errorResp})
+	}
+
+	contractResponses := transformer.ExpenseModelResponsesToResponses(expenses)
+
+	response := contract.ListExpenseResponse{
+		Expenses:   contractResponses,
+		TotalCount: len(contractResponses),
+		Page:       modelReq.Page,
+		Limit:      modelReq.Limit,
+		TotalPages: totalPages,
+	}
+
+	return contract.BuildSuccessResponse(response)
+}

internal/service/omset_milestone_scheduler.go

@@ -4,11 +4,11 @@ import (
 	"context"
 	"fmt"
 	"log"
+	"math"
 	"sync"
 	"time"
 
 	"apskel-pos-be/internal/constants"
-	"apskel-pos-be/internal/entities"
 	"apskel-pos-be/internal/models"
 	"apskel-pos-be/internal/processor"
 	"apskel-pos-be/internal/repository"
@@ -17,32 +17,38 @@ import (
 )
 
 const (
-	defaultCheckInterval = 1 * time.Hour
+	defaultCheckInterval = 5 * time.Minute
 	OmsetMillionRupiah   = 1_000_000.0
 )
 
-// OmsetMilestoneScheduler periodically checks each organization's total omset
-// and sends a notification to owner/admin users when a milestone is reached.
+// OmsetMilestoneScheduler periodically checks each outlet's omset for the
+// current calendar day and sends a notification every time it crosses a new
+// multiple of OmsetMillionRupiah (1 jt, 2 jt, 3 jt, …).
 //
-// NOTE: Milestone tracking is in-memory; notifications may re-trigger after a restart.
-// For persistent tracking, persist the notified state in the database.
+// The notified state is keyed by "outletID:YYYY-MM-DD:N" so each multiple is
+// only notified once per day. State resets naturally on the next day (new key).
+// NOTE: state is in-memory; a server restart within the same day may re-send
+// notifications for already-crossed milestones.
 type OmsetMilestoneScheduler struct {
 	orgRepo          *repository.OrganizationRepositoryImpl
+	outletRepo       *repository.OutletRepositoryImpl
 	userRepo         *repository.UserRepositoryImpl
 	notificationProc processor.NotificationProcessor
 
 	mu       sync.Mutex
-	notified map[string]bool // "orgID:milestone" -> already notified
+	notified map[string]bool // "outletID:YYYY-MM-DD:N" -> already notified
 	stopCh   chan struct{}
 }
 
 func NewOmsetMilestoneScheduler(
 	orgRepo *repository.OrganizationRepositoryImpl,
+	outletRepo *repository.OutletRepositoryImpl,
 	userRepo *repository.UserRepositoryImpl,
 	notificationProc processor.NotificationProcessor,
 ) *OmsetMilestoneScheduler {
 	return &OmsetMilestoneScheduler{
 		orgRepo:          orgRepo,
+		outletRepo:       outletRepo,
 		userRepo:         userRepo,
 		notificationProc: notificationProc,
 		notified:         make(map[string]bool),
@@ -57,8 +63,8 @@ func (s *OmsetMilestoneScheduler) Start(interval time.Duration) {
 	}
 
 	go func() {
-		// Perform an initial check immediately.
-		s.checkAllOrganizations()
+		// Perform an initial check immediately on startup.
+		s.checkAllOutlets()
 
 		ticker := time.NewTicker(interval)
 		defer ticker.Stop()
@@ -66,7 +72,7 @@ func (s *OmsetMilestoneScheduler) Start(interval time.Duration) {
 		for {
 			select {
 			case <-ticker.C:
-				s.checkAllOrganizations()
+				s.checkAllOutlets()
 			case <-s.stopCh:
 				log.Println("Omset milestone scheduler stopped")
 				return
@@ -74,7 +80,7 @@ func (s *OmsetMilestoneScheduler) Start(interval time.Duration) {
 		}
 	}()
 
-	log.Println("Omset milestone scheduler started")
+	log.Printf("Omset milestone scheduler started (interval: %s)", interval)
 }
 
 // Stop signals the scheduler to stop.
@@ -82,7 +88,7 @@ func (s *OmsetMilestoneScheduler) Stop() {
 	close(s.stopCh)
 }
 
-func (s *OmsetMilestoneScheduler) checkAllOrganizations() {
+func (s *OmsetMilestoneScheduler) checkAllOutlets() {
 	ctx := context.Background()
 
 	orgs, _, err := s.orgRepo.List(ctx, nil, 1000, 0)
@@ -92,25 +98,38 @@ func (s *OmsetMilestoneScheduler) checkAllOrganizations() {
 	}
 
 	for _, org := range orgs {
-		s.checkOrganization(ctx, org)
-	}
-}
-
-func (s *OmsetMilestoneScheduler) checkOrganization(ctx context.Context, org *entities.Organization) {
-	totalOmset, err := s.orgRepo.GetTotalOmset(ctx, org.ID)
-	if err != nil {
-		log.Printf("OmsetMilestoneScheduler: failed to get total omset for org %s: %v", org.ID, err)
-		return
-	}
-
-	milestones := []float64{OmsetMillionRupiah}
-
-	for _, milestone := range milestones {
-		if totalOmset < milestone {
+		outlets, err := s.outletRepo.GetByOrganizationID(ctx, org.ID)
+		if err != nil {
+			log.Printf("OmsetMilestoneScheduler: failed to list outlets for org %s: %v", org.ID, err)
 			continue
 		}
 
-		key := fmt.Sprintf("%s:%.0f", org.ID.String(), milestone)
+		for _, outlet := range outlets {
+			if !outlet.IsActive {
+				continue
+			}
+			s.checkOutlet(ctx, org.ID, outlet.ID, outlet.Name)
+		}
+	}
+}
+
+func (s *OmsetMilestoneScheduler) checkOutlet(ctx context.Context, organizationID, outletID uuid.UUID, outletName string) {
+	todayOmset, err := s.outletRepo.GetTodayOmset(ctx, outletID)
+	if err != nil {
+		log.Printf("OmsetMilestoneScheduler: failed to get today's omset for outlet %s: %v", outletID, err)
+		return
+	}
+
+	if todayOmset < OmsetMillionRupiah {
+		return
+	}
+
+	// How many full multiples of 1 juta have been crossed today?
+	crossedMultiple := int(math.Floor(todayOmset / OmsetMillionRupiah))
+	today := time.Now().Format("2006-01-02")
+
+	for n := 1; n <= crossedMultiple; n++ {
+		key := fmt.Sprintf("%s:%s:%d", outletID.String(), today, n)
 
 		s.mu.Lock()
 		if s.notified[key] {
@@ -120,23 +139,31 @@ func (s *OmsetMilestoneScheduler) checkOrganization(ctx context.Context, org *en
 		s.notified[key] = true
 		s.mu.Unlock()
 
-		s.sendMilestoneNotification(ctx, org, totalOmset, milestone)
+		milestone := float64(n) * OmsetMillionRupiah
+		s.sendMilestoneNotification(ctx, organizationID, outletID, outletName, todayOmset, milestone, n)
 	}
 }
 
-func (s *OmsetMilestoneScheduler) sendMilestoneNotification(ctx context.Context, org *entities.Organization, totalOmset float64, milestone float64) {
-	users, err := s.userRepo.GetByOrganizationID(ctx, org.ID)
+func (s *OmsetMilestoneScheduler) sendMilestoneNotification(
+	ctx context.Context,
+	organizationID, outletID uuid.UUID,
+	outletName string,
+	todayOmset, milestone float64,
+	multiple int,
+) {
+	// Fetch all users in the org, then filter to owner and manager only.
+	// These roles are not assigned to a specific outlet, so we query by org.
+	users, err := s.userRepo.GetByOrganizationID(ctx, organizationID)
 	if err != nil {
-		log.Printf("OmsetMilestoneScheduler: failed to get users for org %s: %v", org.ID, err)
+		log.Printf("OmsetMilestoneScheduler: failed to get users for org %s: %v", organizationID, err)
 		return
 	}
 
-	// Notify owner and admin users.
 	var receiverIDs []uuid.UUID
-	for _, user := range users {
-		roleStr := string(user.Role)
-		if roleStr == string(constants.RoleOwner) || roleStr == string(constants.RoleAdmin) {
-			receiverIDs = append(receiverIDs, user.ID)
+	for _, u := range users {
+		role := string(u.Role)
+		if role == string(constants.RoleOwner) || role == string(constants.RoleManager) {
+			receiverIDs = append(receiverIDs, u.ID)
 		}
 	}
 
@@ -144,28 +171,34 @@ func (s *OmsetMilestoneScheduler) sendMilestoneNotification(ctx context.Context,
 		return
 	}
 
-	orgID := org.ID
-	title := "🎉 Selamat! Omset Telah Mencapai 1 Juta Rupiah"
-	body := fmt.Sprintf("Organisasi %s telah mencapai omset Rp %.0f. Terus tingkatkan prestasinya!", org.Name, totalOmset)
+	title := fmt.Sprintf("🎉 Omset %s Hari Ini Mencapai Rp %.0f!", outletName, milestone)
+	body := fmt.Sprintf(
+		"Selamat! Omset outlet %s hari ini sudah menembus Rp %.0f (total hari ini: Rp %.0f). Terus semangat!",
+		outletName, milestone, todayOmset,
+	)
 
 	notifReq := &models.SendNotificationRequest{
 		Title:          title,
 		Body:           body,
 		Type:           "milestone",
 		Category:       "omset_milestone",
-		NotifiableType: "organization",
-		NotifiableID:   &orgID,
+		NotifiableType: "outlet",
+		NotifiableID:   &outletID,
 		ReceiverIDs:    receiverIDs,
 		Data: map[string]interface{}{
-			"organization_id": org.ID.String(),
-			"total_omset":     totalOmset,
+			"organization_id": organizationID.String(),
+			"outlet_id":       outletID.String(),
+			"outlet_name":     outletName,
+			"today_omset":     todayOmset,
 			"milestone":       milestone,
+			"multiple":        multiple,
 		},
 	}
 
 	if _, err := s.notificationProc.Send(ctx, notifReq); err != nil {
-		log.Printf("OmsetMilestoneScheduler: failed to send notification for org %s: %v", org.ID, err)
+		log.Printf("OmsetMilestoneScheduler: failed to send notification for outlet %s: %v", outletID, err)
 	} else {
-		log.Printf("OmsetMilestoneScheduler: sent milestone notification to org %s (omset: %.0f)", org.ID, totalOmset)
+		log.Printf("OmsetMilestoneScheduler: sent milestone x%d (Rp %.0f) for outlet %s (today omset: %.0f)",
+			multiple, milestone, outletName, todayOmset)
 	}
 }

internal/service/order_service.go

@@ -3,6 +3,7 @@ package service
 import (
 	"apskel-pos-be/internal/appcontext"
 	"context"
+	"database/sql"
 	"fmt"
 	"time"
 
@@ -228,7 +229,9 @@ func (s *OrderServiceImpl) AddToOrder(ctx context.Context, orderID uuid.UUID, re
 	var response *models.AddToOrderResponse
 	var ingredientTransactions []*contract.CreateOrderIngredientTransactionRequest
 
-	err := s.txManager.WithTransaction(ctx, func(txCtx context.Context) error {
+	err := s.txManager.WithTransactionOptions(ctx, &sql.TxOptions{
+		Isolation: sql.LevelSerializable,
+	}, func(txCtx context.Context) error {
 		addResp, err := s.orderProcessor.AddToOrder(txCtx, orderID, req)
 		if err != nil {
 			return fmt.Errorf("failed to add items to order: %w", err)
@@ -305,8 +308,16 @@ func (s *OrderServiceImpl) VoidOrder(ctx context.Context, req *models.VoidOrderR
 		return fmt.Errorf("invalid user ID")
 	}
 
-	if err := s.orderProcessor.VoidOrder(ctx, req, voidedBy); err != nil {
-		return fmt.Errorf("failed to void order: %w", err)
+	err := s.txManager.WithTransactionOptions(ctx, &sql.TxOptions{
+		Isolation: sql.LevelSerializable,
+	}, func(txCtx context.Context) error {
+		if err := s.orderProcessor.VoidOrder(txCtx, req, voidedBy); err != nil {
+			return fmt.Errorf("failed to void order: %w", err)
+		}
+		return nil
+	})
+	if err != nil {
+		return err
 	}
 
 	if err := s.handleTableReleaseOnVoid(ctx, req.OrderID); err != nil {
@@ -561,9 +572,14 @@ func (s *OrderServiceImpl) validateCreatePaymentRequest(req *models.CreatePaymen
 				return fmt.Errorf("payment item amount must be greater than zero for item %d", i+1)
 			}
 
+			fmt.Printf("[DEBUG] CreatePayment order_id=%s item[%d] order_item_id=%s amount=%.10f\n",
+				req.OrderID, i, item.OrderItemID, item.Amount)
 			totalItemAmount += item.Amount
 		}
 
+		fmt.Printf("[DEBUG] CreatePayment order_id=%s total_amount=%.10f sum_items=%.10f diff=%.10f\n",
+			req.OrderID, req.Amount, totalItemAmount, req.Amount-totalItemAmount)
+
 		if totalItemAmount != req.Amount {
 			return fmt.Errorf("sum of payment item amounts must equal total payment amount")
 		}

internal/service/product_outlet_price_service.go

@@ -105,9 +105,10 @@ func (s *ProductOutletPriceServiceImpl) BulkUpsert(ctx context.Context, req *con
 	prices := make([]models.CreateProductOutletPriceRequest, len(req.Prices))
 	for i, p := range req.Prices {
 		prices[i] = models.CreateProductOutletPriceRequest{
-			ProductID: req.ProductID,
-			OutletID:  p.OutletID,
-			Price:     p.Price,
+			ProductID:      req.ProductID,
+			OutletID:       p.OutletID,
+			Price:          p.Price,
+			PrintToChecker: p.PrintToChecker,
 		}
 	}
 

internal/service/product_service.go

@@ -14,7 +14,7 @@ import (
 
 type ProductService interface {
 	CreateProduct(ctx context.Context, apctx *appcontext.ContextInfo, req *contract.CreateProductRequest) *contract.Response
-	UpdateProduct(ctx context.Context, id uuid.UUID, req *contract.UpdateProductRequest) *contract.Response
+	UpdateProduct(ctx context.Context, apctx *appcontext.ContextInfo, id uuid.UUID, req *contract.UpdateProductRequest) *contract.Response
 	DeleteProduct(ctx context.Context, id uuid.UUID) *contract.Response
 	GetProductByID(ctx context.Context, id uuid.UUID, outletID uuid.UUID) *contract.Response
 	ListProducts(ctx context.Context, req *contract.ListProductsRequest) *contract.Response
@@ -44,8 +44,8 @@ func (s *ProductServiceImpl) CreateProduct(ctx context.Context, apctx *appcontex
 	return contract.BuildSuccessResponse(contractResponse)
 }
 
-func (s *ProductServiceImpl) UpdateProduct(ctx context.Context, id uuid.UUID, req *contract.UpdateProductRequest) *contract.Response {
-	modelReq := transformer.UpdateProductRequestToModel(req)
+func (s *ProductServiceImpl) UpdateProduct(ctx context.Context, apctx *appcontext.ContextInfo, id uuid.UUID, req *contract.UpdateProductRequest) *contract.Response {
+	modelReq := transformer.UpdateProductRequestToModel(apctx, req)
 
 	productResponse, err := s.productProcessor.UpdateProduct(ctx, id, modelReq)
 	if err != nil {

internal/service/report_service.go

@@ -113,7 +113,8 @@ func (s *ReportServiceImpl) GenerateDailyTransactionPDF(ctx context.Context, org
 	end := day.Add(24*time.Hour - time.Nanosecond)
 
 	salesReq := &models.SalesAnalyticsRequest{OrganizationID: orgID, OutletID: &outID, DateFrom: start, DateTo: end, GroupBy: "day"}
-	plReq := &models.ProfitLossAnalyticsRequest{OrganizationID: orgID, OutletID: &outID, DateFrom: start, DateTo: end, GroupBy: "day"}
+	plReq := &models.ProfitLossAnalyticsRequest{OrganizationID: orgID, OutletID: &outID, DateFrom: start, DateTo: end}
+	productReq := &models.ProductAnalyticsRequest{OrganizationID: orgID, OutletID: &outID, DateFrom: start, DateTo: end, Limit: 1000}
 
 	sales, err := s.analyticsService.GetSalesAnalytics(ctx, salesReq)
 	if err != nil {
@@ -123,6 +124,15 @@ func (s *ReportServiceImpl) GenerateDailyTransactionPDF(ctx context.Context, org
 	if err != nil {
 		return "", "", fmt.Errorf("get profit/loss analytics: %w", err)
 	}
+	products, err := s.analyticsService.GetProductAnalytics(ctx, productReq)
+	if err != nil {
+		return "", "", fmt.Errorf("get product analytics: %w", err)
+	}
+
+	totalOmset := getPLNominalByID(pl.MainSummary, "total_omset")
+	hpp := getPLNominalByID(pl.MainSummary, "hpp")
+	labaKotor := getPLNominalByID(pl.MainSummary, "laba_kotor")
+	labaKotorPct := getPLPctByID(pl.MainSummary, "laba_kotor")
 
 	data := reportTemplateData{
 		OrganizationName: org.Name,
@@ -133,28 +143,28 @@ func (s *ReportServiceImpl) GenerateDailyTransactionPDF(ctx context.Context, org
 		GeneratedBy:      generatedBy,
 		PrintTime:        time.Now().Format("02/01/2006 15:04:05"),
 		Summary: reportSummary{
-			TotalTransactions:  pl.Summary.TotalOrders,
+			TotalTransactions:  sales.Summary.TotalOrders,
 			TotalItems:         sales.Summary.TotalItems,
-			GrossSales:         formatCurrency(pl.Summary.TotalRevenue),
-			Discount:           formatCurrency(pl.Summary.TotalDiscount),
-			Tax:                formatCurrency(pl.Summary.TotalTax),
+			GrossSales:         formatCurrency(totalOmset),
+			Discount:           formatCurrency(sales.Summary.TotalDiscount),
+			Tax:                formatCurrency(sales.Summary.TotalTax),
 			NetSales:           formatCurrency(sales.Summary.NetSales),
-			COGS:               formatCurrency(pl.Summary.TotalCost),
-			GrossProfit:        formatCurrency(pl.Summary.GrossProfit),
-			GrossMarginPercent: fmt.Sprintf("%.2f", pl.Summary.GrossProfitMargin),
+			COGS:               formatCurrency(hpp),
+			GrossProfit:        formatCurrency(labaKotor),
+			GrossMarginPercent: fmt.Sprintf("%.2f", labaKotorPct),
 		},
 	}
 
-	items := make([]reportItem, 0, len(pl.ProductData))
-	for _, p := range pl.ProductData {
+	items := make([]reportItem, 0, len(products.Data))
+	for _, p := range products.Data {
 		items = append(items, reportItem{
 			Name:        p.ProductName,
 			Quantity:    p.QuantitySold,
 			GrossSales:  formatCurrency(p.Revenue),
 			Discount:    formatCurrency(0),
 			NetSales:    formatCurrency(p.Revenue),
-			COGS:        formatCurrency(p.Cost),
-			GrossProfit: formatCurrency(p.GrossProfit),
+			COGS:        formatCurrency(p.StandardHppTotal),
+			GrossProfit: formatCurrency(p.Revenue - p.StandardHppTotal),
 		})
 	}
 	data.Items = items
@@ -190,3 +200,21 @@ func (s *ReportServiceImpl) GenerateDailyTransactionPDF(ctx context.Context, org
 
 	return publicURL, fileName, nil
 }
+
+func getPLNominalByID(rows []models.ProfitLossSummaryRow, id string) float64 {
+	for _, row := range rows {
+		if row.ID == id {
+			return row.TodayNominal
+		}
+	}
+	return 0
+}
+
+func getPLPctByID(rows []models.ProfitLossSummaryRow, id string) float64 {
+	for _, row := range rows {
+		if row.ID == id {
+			return row.TodayPct
+		}
+	}
+	return 0
+}

internal/transformer/analytics_transformer.go

@@ -257,6 +257,7 @@ func ProductAnalyticsModelToContract(resp *models.ProductAnalyticsResponse) *con
 			ProductID:               item.ProductID,
 			ProductName:             item.ProductName,
 			ProductSku:              item.ProductSku,
+			ProductPrice:            item.ProductPrice,
 			CategoryID:              item.CategoryID,
 			CategoryName:            item.CategoryName,
 			CategoryOrder:           item.CategoryOrder,
@@ -367,6 +368,7 @@ func DashboardAnalyticsModelToContract(resp *models.DashboardAnalyticsResponse)
 		topProducts = append(topProducts, contract.ProductAnalyticsData{
 			ProductID:               item.ProductID,
 			ProductName:             item.ProductName,
+			ProductPrice:            item.ProductPrice,
 			CategoryID:              item.CategoryID,
 			CategoryName:            item.CategoryName,
 			QuantitySold:            item.QuantitySold,
@@ -427,20 +429,22 @@ func DashboardAnalyticsModelToContract(resp *models.DashboardAnalyticsResponse)
 	}
 }
 
-// ProfitLossAnalyticsContractToModel transforms contract request to model
 func ProfitLossAnalyticsContractToModel(req *contract.ProfitLossAnalyticsRequest) (*models.ProfitLossAnalyticsRequest, error) {
 	if req == nil {
 		return nil, fmt.Errorf("request cannot be nil")
 	}
 
-	// Parse date range using utility function
 	dateFrom, dateTo, err := util.ParseDateRangeToJakartaTime(req.DateFrom, req.DateTo)
 	if err != nil {
-		return nil, fmt.Errorf("invalid date format: %w", err)
+		return nil, fmt.Errorf("invalid date range: %w", err)
 	}
 
-	if dateFrom == nil || dateTo == nil {
-		return nil, fmt.Errorf("both date_from and date_to are required")
+	if dateFrom == nil {
+		return nil, fmt.Errorf("date_from is required")
+	}
+
+	if dateTo == nil {
+		return nil, fmt.Errorf("date_to is required")
 	}
 
 	return &models.ProfitLossAnalyticsRequest{
@@ -452,13 +456,16 @@ func ProfitLossAnalyticsContractToModel(req *contract.ProfitLossAnalyticsRequest
 	}, nil
 }
 
-// ProfitLossAnalyticsModelToContract transforms model response to contract
 func ProfitLossAnalyticsModelToContract(resp *models.ProfitLossAnalyticsResponse) *contract.ProfitLossAnalyticsResponse {
 	if resp == nil {
 		return nil
 	}
 
-	// Transform profit/loss data
+	mainSummary := make([]contract.ProfitLossSummaryRow, len(resp.MainSummary))
+	for i, row := range resp.MainSummary {
+		mainSummary[i] = profitLossSummaryRowModelToContract(row)
+	}
+
 	data := make([]contract.ProfitLossData, len(resp.Data))
 	for i, item := range resp.Data {
 		data[i] = contract.ProfitLossData{
@@ -475,7 +482,6 @@ func ProfitLossAnalyticsModelToContract(resp *models.ProfitLossAnalyticsResponse
 		}
 	}
 
-	// Transform product profit data
 	productData := make([]contract.ProductProfitData, len(resp.ProductData))
 	for i, item := range resp.ProductData {
 		productData[i] = contract.ProductProfitData{
@@ -494,6 +500,14 @@ func ProfitLossAnalyticsModelToContract(resp *models.ProfitLossAnalyticsResponse
 		}
 	}
 
+	opsItems := make([]contract.OperationalExpenseItem, len(resp.OperationalExpenses))
+	for i, item := range resp.OperationalExpenses {
+		opsItems[i] = contract.OperationalExpenseItem{
+			Item:    item.Item,
+			Nominal: item.Nominal,
+		}
+	}
+
 	return &contract.ProfitLossAnalyticsResponse{
 		OrganizationID: resp.OrganizationID,
 		OutletID:       resp.OutletID,
@@ -513,7 +527,27 @@ func ProfitLossAnalyticsModelToContract(resp *models.ProfitLossAnalyticsResponse
 			AverageProfit:      resp.Summary.AverageProfit,
 			ProfitabilityRatio: resp.Summary.ProfitabilityRatio,
 		},
-		Data:        data,
-		ProductData: productData,
+		Data:                     data,
+		ProductData:              productData,
+		MainSummary:              mainSummary,
+		OperationalExpenses:      opsItems,
+		OperationalExpensesTotal: resp.OperationalExpensesTotal,
+	}
+}
+
+func profitLossSummaryRowModelToContract(row models.ProfitLossSummaryRow) contract.ProfitLossSummaryRow {
+	subItems := make([]contract.ProfitLossSummaryRow, len(row.SubItems))
+	for i, sub := range row.SubItems {
+		subItems[i] = profitLossSummaryRowModelToContract(sub)
+	}
+	return contract.ProfitLossSummaryRow{
+		ID:           row.ID,
+		Label:        row.Label,
+		IsBold:       row.IsBold,
+		TodayNominal: row.TodayNominal,
+		TodayPct:     row.TodayPct,
+		MtdNominal:   row.MtdNominal,
+		MtdPct:       row.MtdPct,
+		SubItems:     subItems,
 	}
 }

internal/transformer/analytics_transformer_test.go

@@ -74,3 +74,81 @@ func TestPurchasingAnalyticsModelToContractOmitsNilOutletName(t *testing.T) {
 	require.NoError(t, err)
 	require.NotContains(t, string(payload), "outlet_name")
 }
+
+func TestProfitLossAnalyticsContractToModelParsesDateRange(t *testing.T) {
+	orgID := uuid.New()
+	outletID := uuid.New().String()
+
+	result, err := ProfitLossAnalyticsContractToModel(&contract.ProfitLossAnalyticsRequest{
+		OrganizationID: orgID,
+		OutletID:       &outletID,
+		DateFrom:       "01-05-2026",
+		DateTo:         "29-05-2026",
+		GroupBy:        "week",
+	})
+
+	require.NoError(t, err)
+	require.Equal(t, orgID, result.OrganizationID)
+	require.NotNil(t, result.OutletID)
+	require.Equal(t, outletID, result.OutletID.String())
+	require.Equal(t, "week", result.GroupBy)
+
+	location, err := time.LoadLocation("Asia/Jakarta")
+	require.NoError(t, err)
+	require.Equal(t, time.Date(2026, 5, 1, 0, 0, 0, 0, location), result.DateFrom)
+	require.Equal(t, time.Date(2026, 5, 29, 23, 59, 59, int(time.Second-time.Nanosecond), location), result.DateTo)
+}
+
+func TestProfitLossAnalyticsModelToContractCopiesDateRange(t *testing.T) {
+	dateFrom := time.Date(2026, 5, 1, 0, 0, 0, 0, time.UTC)
+	dateTo := time.Date(2026, 5, 29, 23, 59, 59, int(time.Second-time.Nanosecond), time.UTC)
+	productID := uuid.New()
+	categoryID := uuid.New()
+
+	result := ProfitLossAnalyticsModelToContract(&models.ProfitLossAnalyticsResponse{
+		OrganizationID: uuid.New(),
+		DateFrom:       dateFrom,
+		DateTo:         dateTo,
+		GroupBy:        "month",
+		Summary: models.ProfitLossSummary{
+			TotalRevenue: 1000,
+			NetProfit:    500,
+		},
+		Data: []models.ProfitLossData{
+			{
+				Date:      dateFrom,
+				Revenue:   1000,
+				NetProfit: 500,
+			},
+		},
+		ProductData: []models.ProductProfitData{
+			{
+				ProductID:    productID,
+				ProductName:  "Nasi",
+				CategoryID:   categoryID,
+				CategoryName: "Food",
+				Revenue:      1000,
+				GrossProfit:  500,
+			},
+		},
+		MainSummary: []models.ProfitLossSummaryRow{
+			{
+				ID:           "total_omset",
+				Label:        "TOTAL OMSET",
+				TodayNominal: 1000,
+			},
+		},
+	})
+
+	require.NotNil(t, result)
+	require.Equal(t, dateFrom, result.DateFrom)
+	require.Equal(t, dateTo, result.DateTo)
+	require.Equal(t, "month", result.GroupBy)
+	require.Equal(t, float64(1000), result.Summary.TotalRevenue)
+	require.Len(t, result.Data, 1)
+	require.Equal(t, float64(500), result.Data[0].NetProfit)
+	require.Len(t, result.ProductData, 1)
+	require.Equal(t, productID, result.ProductData[0].ProductID)
+	require.Len(t, result.MainSummary, 1)
+	require.Equal(t, "total_omset", result.MainSummary[0].ID)
+}

internal/transformer/category_transformer.go

@@ -7,12 +7,17 @@ import (
 )
 
 func CreateCategoryRequestToModel(apctx *appcontext.ContextInfo, req *contract.CreateCategoryRequest) *models.CreateCategoryRequest {
+	order := 0
+	if req.Order != nil {
+		order = *req.Order
+	}
 	return &models.CreateCategoryRequest{
 		OrganizationID: apctx.OrganizationID,
+		OutletID:       req.OutletID,
 		Name:           req.Name,
 		Description:    req.Description,
 		ImageURL:       nil,
-		Order:      	*req.Order,
+		Order:          order,
 	}
 }
 
@@ -21,7 +26,8 @@ func UpdateCategoryRequestToModel(req *contract.UpdateCategoryRequest) *models.U
 		Name:        req.Name,
 		Description: req.Description,
 		ImageURL:    nil,
-		Order:   	 req.Order,
+		OutletID:    req.OutletID,
+		Order:       req.Order,
 		IsActive:    nil,
 	}
 }
@@ -34,9 +40,10 @@ func CategoryModelResponseToResponse(cat *models.CategoryResponse) *contract.Cat
 	return &contract.CategoryResponse{
 		ID:             cat.ID,
 		OrganizationID: cat.OrganizationID,
+		OutletID:       cat.OutletID,
 		Name:           cat.Name,
 		Description:    cat.Description,
-		BusinessType:   "restaurant", // Default business type
+		BusinessType:   "restaurant",
 		Order:          cat.Order,
 		Metadata:       map[string]interface{}{},
 		CreatedAt:      cat.CreatedAt,

internal/transformer/expense_transformer.go

@@ -0,0 +1,136 @@
+package transformer
+
+import (
+	"apskel-pos-be/internal/contract"
+	"apskel-pos-be/internal/models"
+)
+
+func CreateExpenseRequestToModel(req *contract.CreateExpenseRequest) *models.CreateExpenseRequest {
+	items := make([]models.CreateExpenseItemRequest, len(req.Items))
+	for i, item := range req.Items {
+		items[i] = CreateExpenseItemRequestToModel(&item)
+	}
+
+	return &models.CreateExpenseRequest{
+		Receiver:        req.Receiver,
+		TransactionDate: req.TransactionDate,
+		CodeNumber:      req.CodeNumber,
+		OutletID:        req.OutletID,
+		Status:          req.Status,
+		Description:     req.Description,
+		Tax:             req.Tax,
+		Total:           req.Total,
+		Items:           items,
+	}
+}
+
+func CreateExpenseItemRequestToModel(req *contract.CreateExpenseItemRequest) models.CreateExpenseItemRequest {
+	return models.CreateExpenseItemRequest{
+		ChartOfAccountID: req.ChartOfAccountID,
+		Item:             req.Item,
+		Description:      req.Description,
+		Amount:           req.Amount,
+	}
+}
+
+func UpdateExpenseRequestToModel(req *contract.UpdateExpenseRequest) *models.UpdateExpenseRequest {
+	modelReq := &models.UpdateExpenseRequest{
+		Receiver:        req.Receiver,
+		TransactionDate: req.TransactionDate,
+		CodeNumber:      req.CodeNumber,
+		OutletID:        req.OutletID,
+		Status:          req.Status,
+		Description:     req.Description,
+		Tax:             req.Tax,
+		Total:           req.Total,
+		Reserved1:       req.Reserved1,
+	}
+
+	if req.Items != nil {
+		items := make([]models.UpdateExpenseItemRequest, len(req.Items))
+		for i, item := range req.Items {
+			items[i] = UpdateExpenseItemRequestToModel(&item)
+		}
+		modelReq.Items = items
+	}
+
+	return modelReq
+}
+
+func UpdateExpenseItemRequestToModel(req *contract.UpdateExpenseItemRequest) models.UpdateExpenseItemRequest {
+	return models.UpdateExpenseItemRequest{
+		ChartOfAccountID: req.ChartOfAccountID,
+		Item:             req.Item,
+		Description:      req.Description,
+		Amount:           req.Amount,
+	}
+}
+
+func ListExpenseRequestToModel(req *contract.ListExpenseRequest) *models.ListExpenseRequest {
+	return &models.ListExpenseRequest{
+		Page:      req.Page,
+		Limit:     req.Limit,
+		Search:    req.Search,
+		OutletID:  req.OutletID,
+		Status:    req.Status,
+		StartDate: req.StartDate,
+		EndDate:   req.EndDate,
+	}
+}
+
+func ExpenseModelResponseToResponse(expense *models.ExpenseResponse) *contract.ExpenseResponse {
+	if expense == nil {
+		return nil
+	}
+
+	items := make([]contract.ExpenseItemResponse, len(expense.Items))
+	for i, item := range expense.Items {
+		items[i] = ExpenseItemModelResponseToResponse(&item)
+	}
+
+	return &contract.ExpenseResponse{
+		ID:              expense.ID,
+		OrganizationID:  expense.OrganizationID,
+		OutletID:        expense.OutletID,
+		Receiver:        expense.Receiver,
+		TransactionDate: expense.TransactionDate,
+		CodeNumber:      expense.CodeNumber,
+		Status:          expense.Status,
+		Description:     expense.Description,
+		Tax:             expense.Tax,
+		Total:           expense.Total,
+		Reserved1:       expense.Reserved1,
+		CreatedAt:       expense.CreatedAt,
+		UpdatedAt:       expense.UpdatedAt,
+		Items:           items,
+	}
+}
+
+func ExpenseItemModelResponseToResponse(item *models.ExpenseItemResponse) contract.ExpenseItemResponse {
+	return contract.ExpenseItemResponse{
+		ID:                 item.ID,
+		ExpenseID:          item.ExpenseID,
+		ChartOfAccountID:   item.ChartOfAccountID,
+		ChartOfAccountName: item.ChartOfAccountName,
+		Item:               item.Item,
+		Description:        item.Description,
+		Amount:             item.Amount,
+		CreatedAt:          item.CreatedAt,
+		UpdatedAt:          item.UpdatedAt,
+	}
+}
+
+func ExpenseModelResponsesToResponses(expenses []*models.ExpenseResponse) []contract.ExpenseResponse {
+	if expenses == nil {
+		return nil
+	}
+
+	responses := make([]contract.ExpenseResponse, len(expenses))
+	for i, expense := range expenses {
+		response := ExpenseModelResponseToResponse(expense)
+		if response != nil {
+			responses[i] = *response
+		}
+	}
+	return responses
+}

internal/transformer/order_transformer.go

@@ -100,6 +100,8 @@ func OrderModelToContract(resp *models.OrderResponse) *contract.OrderResponse {
 			ProductName:        item.ProductName,
 			ProductVariantID:   item.ProductVariantID,
 			ProductVariantName: item.ProductVariantName,
+			CategoryID:         item.CategoryID,
+			CategoryName:       item.CategoryName,
 			Quantity:           item.Quantity,
 			UnitPrice:          item.UnitPrice,
 			TotalPrice:         item.TotalPrice,
@@ -110,6 +112,7 @@ func OrderModelToContract(resp *models.OrderResponse) *contract.OrderResponse {
 			CreatedAt:          item.CreatedAt,
 			UpdatedAt:          item.UpdatedAt,
 			PrinterType:        item.PrinterType,
+			PrintToChecker:     item.PrintToChecker,
 			PaidQuantity:       item.PaidQuantity,
 		}
 	}
@@ -168,6 +171,8 @@ func AddToOrderModelToContract(resp *models.AddToOrderResponse) *contract.AddToO
 			ProductName:        item.ProductName,
 			ProductVariantID:   item.ProductVariantID,
 			ProductVariantName: item.ProductVariantName,
+			CategoryID:         item.CategoryID,
+			CategoryName:       item.CategoryName,
 			Quantity:           item.Quantity,
 			UnitPrice:          item.UnitPrice,
 			TotalPrice:         item.TotalPrice,
@@ -177,6 +182,7 @@ func AddToOrderModelToContract(resp *models.AddToOrderResponse) *contract.AddToO
 			Status:             string(item.Status),
 			CreatedAt:          item.CreatedAt,
 			UpdatedAt:          item.UpdatedAt,
+			PrintToChecker:     item.PrintToChecker,
 		}
 	}
 	return &contract.AddToOrderResponse{

internal/transformer/product_outlet_price_transformer.go

@@ -11,9 +11,10 @@ func CreateProductOutletPriceRequestToModel(req *contract.CreateProductOutletPri
 	}
 
 	return &models.CreateProductOutletPriceRequest{
-		ProductID: req.ProductID,
-		OutletID:  req.OutletID,
-		Price:     req.Price,
+		ProductID:      req.ProductID,
+		OutletID:       req.OutletID,
+		Price:          req.Price,
+		PrintToChecker: req.PrintToChecker,
 	}
 }
 
@@ -23,7 +24,8 @@ func UpdateProductOutletPriceRequestToModel(req *contract.UpdateProductOutletPri
 	}
 
 	return &models.UpdateProductOutletPriceRequest{
-		Price: &req.Price,
+		Price:          &req.Price,
+		PrintToChecker: req.PrintToChecker,
 	}
 }
 
@@ -33,12 +35,13 @@ func ProductOutletPriceModelToResponse(m *models.ProductOutletPrice) *contract.P
 	}
 
 	return &contract.ProductOutletPriceResponse{
-		ID:        m.ID,
-		ProductID: m.ProductID,
-		OutletID:  m.OutletID,
-		Price:     m.Price,
-		CreatedAt: m.CreatedAt,
-		UpdatedAt: m.UpdatedAt,
+		ID:             m.ID,
+		ProductID:      m.ProductID,
+		OutletID:       m.OutletID,
+		Price:          m.Price,
+		PrintToChecker: m.PrintToChecker,
+		CreatedAt:      m.CreatedAt,
+		UpdatedAt:      m.UpdatedAt,
 	}
 }
 

internal/transformer/product_transformer.go

@@ -5,6 +5,8 @@ import (
 	"apskel-pos-be/internal/constants"
 	"apskel-pos-be/internal/contract"
 	"apskel-pos-be/internal/models"
+
+	"github.com/google/uuid"
 )
 
 func CreateProductRequestToModel(apctx *appcontext.ContextInfo, req *contract.CreateProductRequest) *models.CreateProductRequest {
@@ -37,8 +39,15 @@ func CreateProductRequestToModel(apctx *appcontext.ContextInfo, req *contract.Cr
 		metadata = make(map[string]interface{})
 	}
 
+	// Prioritize outlet_id from context, fallback to request body
+	outletID := apctx.OutletID
+	if outletID == uuid.Nil && req.OutletID != nil {
+		outletID = *req.OutletID
+	}
+
 	return &models.CreateProductRequest{
 		OrganizationID: apctx.OrganizationID,
+		OutletID:       outletID,
 		CategoryID:     req.CategoryID,
 		SKU:            req.SKU,
 		Name:           req.Name,
@@ -48,28 +57,37 @@ func CreateProductRequestToModel(apctx *appcontext.ContextInfo, req *contract.Cr
 		BusinessType:   businessType,
 		ImageURL:       req.ImageURL,
 		PrinterType:    req.PrinterType,
+		PrintToChecker: req.PrintToChecker,
 		Metadata:       metadata,
 		Variants:       variants,
 	}
 }
 
-func UpdateProductRequestToModel(req *contract.UpdateProductRequest) *models.UpdateProductRequest {
+func UpdateProductRequestToModel(apctx *appcontext.ContextInfo, req *contract.UpdateProductRequest) *models.UpdateProductRequest {
 	metadata := req.Metadata
 	if metadata == nil {
 		metadata = make(map[string]interface{})
 	}
 
+	// Prioritize outlet_id from context, fallback to request body
+	outletID := apctx.OutletID
+	if outletID == uuid.Nil && req.OutletID != nil {
+		outletID = *req.OutletID
+	}
+
 	return &models.UpdateProductRequest{
-		CategoryID:  req.CategoryID,
-		SKU:         req.SKU,
-		Name:        req.Name,
-		Description: req.Description,
-		Price:       req.Price,
-		Cost:        req.Cost,
-		ImageURL:    req.ImageURL,
-		PrinterType: req.PrinterType,
-		Metadata:    metadata,
-		IsActive:    req.IsActive,
+		OutletID:       outletID,
+		CategoryID:     req.CategoryID,
+		SKU:            req.SKU,
+		Name:           req.Name,
+		Description:    req.Description,
+		Price:          req.Price,
+		Cost:           req.Cost,
+		ImageURL:       req.ImageURL,
+		PrinterType:    req.PrinterType,
+		PrintToChecker: req.PrintToChecker,
+		Metadata:       metadata,
+		IsActive:       req.IsActive,
 	}
 }
 
@@ -103,9 +121,10 @@ func ProductModelResponseToResponse(prod *models.ProductResponse) *contract.Prod
 		outletPriceResponses = make([]contract.ProductOutletPriceResponse, len(prod.OutletPrices))
 		for i, op := range prod.OutletPrices {
 			outletPriceResponses[i] = contract.ProductOutletPriceResponse{
-				OutletID:   op.OutletID,
-				OutletName: op.OutletName,
-				Price:      op.Price,
+				OutletID:       op.OutletID,
+				OutletName:     op.OutletName,
+				Price:          op.Price,
+				PrintToChecker: op.PrintToChecker,
 			}
 		}
 	}
@@ -125,6 +144,7 @@ func ProductModelResponseToResponse(prod *models.ProductResponse) *contract.Prod
 		BusinessType:   string(prod.BusinessType),
 		ImageURL:       prod.ImageURL,
 		PrinterType:    prod.PrinterType,
+		PrintToChecker: prod.PrintToChecker,
 		Metadata:       prod.Metadata,
 		IsActive:       prod.IsActive,
 		CreatedAt:      prod.CreatedAt,

internal/transformer/purchase_order_transformer.go

@@ -25,10 +25,14 @@ func CreatePurchaseOrderRequestToModel(req *contract.CreatePurchaseOrderRequest)
 		return nil, err
 	}
 
-	// Parse due date
-	dueDate, err := time.Parse("2006-01-02", req.DueDate)
-	if err != nil {
-		return nil, err
+	// Parse due date if provided
+	var dueDate *time.Time
+	if req.DueDate != nil && *req.DueDate != "" {
+		parsedDate, err := time.Parse("2006-01-02", *req.DueDate)
+		if err != nil {
+			return nil, err
+		}
+		dueDate = &parsedDate
 	}
 
 	return &models.CreatePurchaseOrderRequest{

internal/transformer/purchase_order_transformer_test.go

@@ -0,0 +1,43 @@
+package transformer
+
+import (
+	"encoding/json"
+	"testing"
+
+	"apskel-pos-be/internal/contract"
+	"apskel-pos-be/internal/models"
+
+	"github.com/google/uuid"
+	"github.com/stretchr/testify/require"
+)
+
+func TestCreatePurchaseOrderRequestToModelAllowsMissingDueDate(t *testing.T) {
+	result, err := CreatePurchaseOrderRequestToModel(&contract.CreatePurchaseOrderRequest{
+		VendorID:        uuid.New(),
+		PONumber:        "PO-001",
+		TransactionDate: "2026-05-29",
+		Items: []contract.CreatePurchaseOrderItemRequest{
+			{
+				IngredientID: uuid.New(),
+				Quantity:     1,
+				UnitID:       uuid.New(),
+				Amount:       1000,
+			},
+		},
+	})
+
+	require.NoError(t, err)
+	require.Nil(t, result.DueDate)
+}
+
+func TestPurchaseOrderModelResponseToResponseIncludesNullDueDate(t *testing.T) {
+	result := PurchaseOrderModelResponseToResponse(&models.PurchaseOrderResponse{
+		ID:       uuid.New(),
+		VendorID: uuid.New(),
+		PONumber: "PO-001",
+	})
+
+	payload, err := json.Marshal(result)
+	require.NoError(t, err)
+	require.Contains(t, string(payload), `"due_date":null`)
+}

internal/util/http_util.go

@@ -16,6 +16,12 @@ func HandleResponse(w http.ResponseWriter, r *http.Request, response *contract.R
 	} else {
 		responseError := response.GetErrors()[0]
 		statusCode = MapErrorCodeToHttpStatus(responseError.GetCode())
+		logger.FromContext(r.Context()).WithFields(map[string]interface{}{
+			"error_code":   responseError.GetCode(),
+			"error_entity": responseError.GetEntity(),
+			"error_cause":  responseError.GetCause(),
+			"status_code":  statusCode,
+		}).Error(methodName)
 	}
 	WriteResponse(w, r, *response, statusCode, methodName)
 }

internal/validator/expense_validator.go

@@ -0,0 +1,159 @@
+package validator
+
+import (
+	"errors"
+	"fmt"
+	"strings"
+
+	"apskel-pos-be/internal/constants"
+	"apskel-pos-be/internal/contract"
+
+	"github.com/google/uuid"
+)
+
+type ExpenseValidator interface {
+	ValidateCreateExpenseRequest(req *contract.CreateExpenseRequest) (error, string)
+	ValidateUpdateExpenseRequest(req *contract.UpdateExpenseRequest) (error, string)
+	ValidateListExpenseRequest(req *contract.ListExpenseRequest) (error, string)
+}
+
+type ExpenseValidatorImpl struct{}
+
+func NewExpenseValidator() *ExpenseValidatorImpl {
+	return &ExpenseValidatorImpl{}
+}
+
+func (v *ExpenseValidatorImpl) ValidateCreateExpenseRequest(req *contract.CreateExpenseRequest) (error, string) {
+	if req == nil {
+		return errors.New("request body is required"), constants.MissingFieldErrorCode
+	}
+
+	if strings.TrimSpace(req.Receiver) == "" {
+		return errors.New("receiver is required"), constants.MissingFieldErrorCode
+	}
+
+	if strings.TrimSpace(req.TransactionDate) == "" {
+		return errors.New("transaction_date is required"), constants.MissingFieldErrorCode
+	}
+
+	if strings.TrimSpace(req.CodeNumber) == "" {
+		return errors.New("code_number is required"), constants.MissingFieldErrorCode
+	}
+
+	if strings.TrimSpace(req.OutletID) == "" {
+		return errors.New("outlet_id is required"), constants.MissingFieldErrorCode
+	}
+
+	if _, err := uuid.Parse(req.OutletID); err != nil {
+		return errors.New("outlet_id must be a valid UUID"), constants.MalformedFieldErrorCode
+	}
+
+	if req.Status != nil && !constants.IsValidExpenseStatus(constants.ExpenseStatus(*req.Status)) {
+		return errors.New("status must be one of: draft, sent, approved, cancel"), constants.MalformedFieldErrorCode
+	}
+
+	if req.Total <= 0 {
+		return errors.New("total must be greater than 0"), constants.MalformedFieldErrorCode
+	}
+
+	if req.Tax < 0 {
+		return errors.New("tax cannot be negative"), constants.MalformedFieldErrorCode
+	}
+
+	if len(req.Items) == 0 {
+		return errors.New("at least one item is required"), constants.MissingFieldErrorCode
+	}
+
+	for i, item := range req.Items {
+		if strings.TrimSpace(item.ChartOfAccountID) == "" {
+			return fmt.Errorf("item %d: chart_of_account_id is required", i), constants.MissingFieldErrorCode
+		}
+		if strings.TrimSpace(item.Item) == "" {
+			return fmt.Errorf("item %d: item is required", i), constants.MissingFieldErrorCode
+		}
+		if _, err := uuid.Parse(item.ChartOfAccountID); err != nil {
+			return fmt.Errorf("item %d: chart_of_account_id must be a valid UUID", i), constants.MalformedFieldErrorCode
+		}
+		if item.Amount <= 0 {
+			return fmt.Errorf("item %d: amount must be greater than 0", i), constants.MalformedFieldErrorCode
+		}
+	}
+
+	return nil, ""
+}
+
+func (v *ExpenseValidatorImpl) ValidateUpdateExpenseRequest(req *contract.UpdateExpenseRequest) (error, string) {
+	if req == nil {
+		return errors.New("request body is required"), constants.MissingFieldErrorCode
+	}
+
+	if req.Receiver != nil && strings.TrimSpace(*req.Receiver) == "" {
+		return errors.New("receiver cannot be empty"), constants.MalformedFieldErrorCode
+	}
+
+	if req.CodeNumber != nil && strings.TrimSpace(*req.CodeNumber) == "" {
+		return errors.New("code_number cannot be empty"), constants.MalformedFieldErrorCode
+	}
+
+	if req.Status != nil && !constants.IsValidExpenseStatus(constants.ExpenseStatus(*req.Status)) {
+		return errors.New("status must be one of: draft, sent, approved, cancel"), constants.MalformedFieldErrorCode
+	}
+
+	if req.OutletID != nil {
+		if strings.TrimSpace(*req.OutletID) == "" {
+			return errors.New("outlet_id cannot be empty"), constants.MalformedFieldErrorCode
+		}
+		if _, err := uuid.Parse(*req.OutletID); err != nil {
+			return errors.New("outlet_id must be a valid UUID"), constants.MalformedFieldErrorCode
+		}
+	}
+
+	if req.Total != nil && *req.Total <= 0 {
+		return errors.New("total must be greater than 0"), constants.MalformedFieldErrorCode
+	}
+
+	if req.Tax != nil && *req.Tax < 0 {
+		return errors.New("tax cannot be negative"), constants.MalformedFieldErrorCode
+	}
+
+	if req.Items != nil {
+		for i, item := range req.Items {
+			if item.ChartOfAccountID != nil {
+				if strings.TrimSpace(*item.ChartOfAccountID) == "" {
+					return fmt.Errorf("item %d: chart_of_account_id cannot be empty", i), constants.MalformedFieldErrorCode
+				}
+				if _, err := uuid.Parse(*item.ChartOfAccountID); err != nil {
+					return fmt.Errorf("item %d: chart_of_account_id must be a valid UUID", i), constants.MalformedFieldErrorCode
+				}
+			}
+			if item.Item != nil && strings.TrimSpace(*item.Item) == "" {
+				return fmt.Errorf("item %d: item cannot be empty", i), constants.MalformedFieldErrorCode
+			}
+			if item.Amount != nil && *item.Amount <= 0 {
+				return fmt.Errorf("item %d: amount must be greater than 0", i), constants.MalformedFieldErrorCode
+			}
+		}
+	}
+
+	return nil, ""
+}
+
+func (v *ExpenseValidatorImpl) ValidateListExpenseRequest(req *contract.ListExpenseRequest) (error, string) {
+	if req == nil {
+		return errors.New("request body is required"), constants.MissingFieldErrorCode
+	}
+
+	if req.Page < 1 {
+		return errors.New("page must be at least 1"), constants.MalformedFieldErrorCode
+	}
+
+	if req.Limit < 1 || req.Limit > 100 {
+		return errors.New("limit must be between 1 and 100"), constants.MalformedFieldErrorCode
+	}
+
+	if req.Status != "" && !constants.IsValidExpenseStatus(constants.ExpenseStatus(req.Status)) {
+		return errors.New("status must be one of: draft, sent, approved, cancel"), constants.MalformedFieldErrorCode
+	}
+
+	return nil, ""
+}

internal/validator/expense_validator_test.go

@@ -0,0 +1,158 @@
+package validator
+
+import (
+	"testing"
+
+	"apskel-pos-be/internal/constants"
+	"apskel-pos-be/internal/contract"
+
+	"github.com/google/uuid"
+	"github.com/stretchr/testify/require"
+)
+
+func TestExpenseValidatorCreateRequiresItemName(t *testing.T) {
+	v := NewExpenseValidator()
+
+	req := &contract.CreateExpenseRequest{
+		Receiver:        "Cashier",
+		TransactionDate: "2026-05-29",
+		CodeNumber:      "EXP-001",
+		OutletID:        uuid.NewString(),
+		Total:           10000,
+		Items: []contract.CreateExpenseItemRequest{
+			{
+				ChartOfAccountID: uuid.NewString(),
+				Amount:           10000,
+			},
+		},
+	}
+
+	err, code := v.ValidateCreateExpenseRequest(req)
+
+	require.Error(t, err)
+	require.Equal(t, constants.MissingFieldErrorCode, code)
+	require.Contains(t, err.Error(), "item 0: item is required")
+}
+
+func TestExpenseValidatorCreateDoesNotRequireHeaderExpenseName(t *testing.T) {
+	v := NewExpenseValidator()
+
+	req := &contract.CreateExpenseRequest{
+		Receiver:        "Cashier",
+		TransactionDate: "2026-05-29",
+		CodeNumber:      "EXP-001",
+		OutletID:        uuid.NewString(),
+		Total:           10000,
+		Items: []contract.CreateExpenseItemRequest{
+			{
+				ChartOfAccountID: uuid.NewString(),
+				Item:             "Cleaning supplies",
+				Amount:           10000,
+			},
+		},
+	}
+
+	err, code := v.ValidateCreateExpenseRequest(req)
+
+	require.NoError(t, err)
+	require.Empty(t, code)
+}
+
+func TestExpenseValidatorCreateAllowsValidOptionalStatus(t *testing.T) {
+	v := NewExpenseValidator()
+	status := "approved"
+
+	req := &contract.CreateExpenseRequest{
+		Receiver:        "Cashier",
+		TransactionDate: "2026-05-29",
+		CodeNumber:      "EXP-001",
+		OutletID:        uuid.NewString(),
+		Status:          &status,
+		Total:           10000,
+		Items: []contract.CreateExpenseItemRequest{
+			{
+				ChartOfAccountID: uuid.NewString(),
+				Item:             "Cleaning supplies",
+				Amount:           10000,
+			},
+		},
+	}
+
+	err, code := v.ValidateCreateExpenseRequest(req)
+
+	require.NoError(t, err)
+	require.Empty(t, code)
+}
+
+func TestExpenseValidatorCreateRejectsInvalidStatus(t *testing.T) {
+	v := NewExpenseValidator()
+	status := "cancelled"
+
+	req := &contract.CreateExpenseRequest{
+		Receiver:        "Cashier",
+		TransactionDate: "2026-05-29",
+		CodeNumber:      "EXP-001",
+		OutletID:        uuid.NewString(),
+		Status:          &status,
+		Total:           10000,
+		Items: []contract.CreateExpenseItemRequest{
+			{
+				ChartOfAccountID: uuid.NewString(),
+				Item:             "Cleaning supplies",
+				Amount:           10000,
+			},
+		},
+	}
+
+	err, code := v.ValidateCreateExpenseRequest(req)
+
+	require.Error(t, err)
+	require.Equal(t, constants.MalformedFieldErrorCode, code)
+	require.Contains(t, err.Error(), "status must be one of: draft, sent, approved, cancel")
+}
+
+func TestExpenseValidatorUpdateRejectsEmptyItemNameWhenProvided(t *testing.T) {
+	v := NewExpenseValidator()
+	empty := " "
+
+	req := &contract.UpdateExpenseRequest{
+		Items: []contract.UpdateExpenseItemRequest{
+			{Item: &empty},
+		},
+	}
+
+	err, code := v.ValidateUpdateExpenseRequest(req)
+
+	require.Error(t, err)
+	require.Equal(t, constants.MalformedFieldErrorCode, code)
+	require.Contains(t, err.Error(), "item 0: item cannot be empty")
+}
+
+func TestExpenseValidatorUpdateRejectsInvalidStatus(t *testing.T) {
+	v := NewExpenseValidator()
+	status := "cancelled"
+
+	req := &contract.UpdateExpenseRequest{Status: &status}
+
+	err, code := v.ValidateUpdateExpenseRequest(req)
+
+	require.Error(t, err)
+	require.Equal(t, constants.MalformedFieldErrorCode, code)
+	require.Contains(t, err.Error(), "status must be one of: draft, sent, approved, cancel")
+}
+
+func TestExpenseValidatorListRejectsInvalidStatus(t *testing.T) {
+	v := NewExpenseValidator()
+
+	req := &contract.ListExpenseRequest{
+		Page:   1,
+		Limit:  10,
+		Status: "cancelled",
+	}
+
+	err, code := v.ValidateListExpenseRequest(req)
+
+	require.Error(t, err)
+	require.Equal(t, constants.MalformedFieldErrorCode, code)
+	require.Contains(t, err.Error(), "status must be one of: draft, sent, approved, cancel")
+}

internal/validator/purchase_order_validator.go

@@ -47,18 +47,19 @@ func (v *PurchaseOrderValidatorImpl) ValidateCreatePurchaseOrderRequest(req *con
 		return errors.New("transaction_date must be in YYYY-MM-DD format"), constants.MalformedFieldErrorCode
 	}
 
-	// Validate due date
-	if strings.TrimSpace(req.DueDate) == "" {
-		return errors.New("due_date is required"), constants.MissingFieldErrorCode
-	}
-	dueDate, err := time.Parse("2006-01-02", req.DueDate)
-	if err != nil {
-		return errors.New("due_date must be in YYYY-MM-DD format"), constants.MalformedFieldErrorCode
-	}
+	if req.DueDate != nil {
+		if strings.TrimSpace(*req.DueDate) == "" {
+			return errors.New("due_date cannot be empty"), constants.MalformedFieldErrorCode
+		}
 
-	// Check if due date is after transaction date
-	if dueDate.Before(transactionDate) {
-		return errors.New("due_date must be after transaction_date"), constants.MalformedFieldErrorCode
+		dueDate, err := time.Parse("2006-01-02", *req.DueDate)
+		if err != nil {
+			return errors.New("due_date must be in YYYY-MM-DD format"), constants.MalformedFieldErrorCode
+		}
+
+		if dueDate.Before(transactionDate) {
+			return errors.New("due_date must be after transaction_date"), constants.MalformedFieldErrorCode
+		}
 	}
 
 	if req.Reference != nil && len(*req.Reference) > 100 {
@@ -100,22 +101,27 @@ func (v *PurchaseOrderValidatorImpl) ValidateUpdatePurchaseOrderRequest(req *con
 		}
 	}
 
-	// Validate dates if both are provided
-	if req.TransactionDate != nil && req.DueDate != nil {
-		if *req.TransactionDate != "" && *req.DueDate != "" {
-			transactionDate, err := time.Parse("2006-01-02", *req.TransactionDate)
-			if err != nil {
-				return errors.New("transaction_date must be in YYYY-MM-DD format"), constants.MalformedFieldErrorCode
-			}
-			
-			dueDate, err := time.Parse("2006-01-02", *req.DueDate)
-			if err != nil {
-				return errors.New("due_date must be in YYYY-MM-DD format"), constants.MalformedFieldErrorCode
-			}
-			
-			if dueDate.Before(transactionDate) {
-				return errors.New("due_date must be after transaction_date"), constants.MalformedFieldErrorCode
-			}
+	var transactionDate *time.Time
+	if req.TransactionDate != nil && *req.TransactionDate != "" {
+		parsedDate, err := time.Parse("2006-01-02", *req.TransactionDate)
+		if err != nil {
+			return errors.New("transaction_date must be in YYYY-MM-DD format"), constants.MalformedFieldErrorCode
+		}
+		transactionDate = &parsedDate
+	}
+
+	if req.DueDate != nil {
+		if strings.TrimSpace(*req.DueDate) == "" {
+			return errors.New("due_date cannot be empty"), constants.MalformedFieldErrorCode
+		}
+
+		dueDate, err := time.Parse("2006-01-02", *req.DueDate)
+		if err != nil {
+			return errors.New("due_date must be in YYYY-MM-DD format"), constants.MalformedFieldErrorCode
+		}
+
+		if transactionDate != nil && dueDate.Before(*transactionDate) {
+			return errors.New("due_date must be after transaction_date"), constants.MalformedFieldErrorCode
 		}
 	}
 

internal/validator/purchase_order_validator_test.go

@@ -0,0 +1,62 @@
+package validator
+
+import (
+	"testing"
+
+	"apskel-pos-be/internal/constants"
+	"apskel-pos-be/internal/contract"
+
+	"github.com/google/uuid"
+	"github.com/stretchr/testify/require"
+)
+
+func validCreatePurchaseOrderRequest() *contract.CreatePurchaseOrderRequest {
+	return &contract.CreatePurchaseOrderRequest{
+		VendorID:        uuid.New(),
+		PONumber:        "PO-001",
+		TransactionDate: "2026-05-29",
+		Items: []contract.CreatePurchaseOrderItemRequest{
+			{
+				IngredientID: uuid.New(),
+				Quantity:     1,
+				UnitID:       uuid.New(),
+				Amount:       1000,
+			},
+		},
+	}
+}
+
+func TestPurchaseOrderValidatorCreateAllowsMissingDueDate(t *testing.T) {
+	validator := NewPurchaseOrderValidator()
+
+	err, code := validator.ValidateCreatePurchaseOrderRequest(validCreatePurchaseOrderRequest())
+
+	require.NoError(t, err)
+	require.Empty(t, code)
+}
+
+func TestPurchaseOrderValidatorCreateRejectsInvalidDueDate(t *testing.T) {
+	validator := NewPurchaseOrderValidator()
+	req := validCreatePurchaseOrderRequest()
+	dueDate := "29-05-2026"
+	req.DueDate = &dueDate
+
+	err, code := validator.ValidateCreatePurchaseOrderRequest(req)
+
+	require.Error(t, err)
+	require.Equal(t, constants.MalformedFieldErrorCode, code)
+	require.Contains(t, err.Error(), "due_date must be in YYYY-MM-DD format")
+}
+
+func TestPurchaseOrderValidatorCreateRejectsDueDateBeforeTransactionDate(t *testing.T) {
+	validator := NewPurchaseOrderValidator()
+	req := validCreatePurchaseOrderRequest()
+	dueDate := "2026-05-28"
+	req.DueDate = &dueDate
+
+	err, code := validator.ValidateCreatePurchaseOrderRequest(req)
+
+	require.Error(t, err)
+	require.Equal(t, constants.MalformedFieldErrorCode, code)
+	require.Contains(t, err.Error(), "due_date must be after transaction_date")
+}

migrations/000069_add_outlet_id_to_categories.down.sql

@@ -0,0 +1,5 @@
+-- Remove outlet_id column from categories table
+DROP INDEX IF EXISTS idx_categories_outlet_id;
+
+ALTER TABLE categories
+    DROP COLUMN IF EXISTS outlet_id;

migrations/000069_add_outlet_id_to_categories.up.sql

@@ -0,0 +1,6 @@
+-- Add outlet_id column to categories table (nullable)
+ALTER TABLE categories
+    ADD COLUMN outlet_id UUID REFERENCES outlets(id) ON DELETE SET NULL;
+
+-- Index for outlet_id filter
+CREATE INDEX idx_categories_outlet_id ON categories(outlet_id);

migrations/000070_add_print_to_checker_to_product_outlet_prices.down.sql

@@ -0,0 +1 @@
+ALTER TABLE product_outlet_prices DROP COLUMN IF EXISTS print_to_checker;

migrations/000070_add_print_to_checker_to_product_outlet_prices.up.sql

@@ -0,0 +1 @@
+ALTER TABLE product_outlet_prices ADD COLUMN print_to_checker BOOLEAN NOT NULL DEFAULT TRUE;

migrations/000071_create_expenses_table.down.sql

@@ -0,0 +1,2 @@
+DROP TABLE IF EXISTS expense_items;
+DROP TABLE IF EXISTS expenses;

migrations/000071_create_expenses_table.up.sql

@@ -0,0 +1,33 @@
+CREATE TABLE expenses (
+    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    organization_id UUID NOT NULL REFERENCES organizations(id) ON DELETE CASCADE,
+    outlet_id UUID NOT NULL REFERENCES outlets(id) ON DELETE CASCADE,
+    receiver VARCHAR(255) NOT NULL,
+    transaction_date DATE NOT NULL,
+    code_number VARCHAR(50) NOT NULL,
+    description TEXT,
+    tax DECIMAL(15,2) NOT NULL DEFAULT 0,
+    total DECIMAL(15,2) NOT NULL DEFAULT 0,
+    reserved1 TEXT,
+    created_at TIMESTAMP WITH TIME ZONE DEFAULT NOW(),
+    updated_at TIMESTAMP WITH TIME ZONE DEFAULT NOW()
+);
+
+CREATE INDEX idx_expenses_organization_id ON expenses(organization_id);
+CREATE INDEX idx_expenses_outlet_id ON expenses(outlet_id);
+CREATE INDEX idx_expenses_transaction_date ON expenses(transaction_date);
+CREATE INDEX idx_expenses_code_number ON expenses(code_number);
+CREATE INDEX idx_expenses_created_at ON expenses(created_at);
+
+CREATE TABLE expense_items (
+    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    expense_id UUID NOT NULL REFERENCES expenses(id) ON DELETE CASCADE,
+    chart_of_account_id UUID NOT NULL REFERENCES chart_of_accounts(id) ON DELETE RESTRICT,
+    description TEXT,
+    amount DECIMAL(15,2) NOT NULL DEFAULT 0,
+    created_at TIMESTAMP WITH TIME ZONE DEFAULT NOW(),
+    updated_at TIMESTAMP WITH TIME ZONE DEFAULT NOW()
+);
+
+CREATE INDEX idx_expense_items_expense_id ON expense_items(expense_id);
+CREATE INDEX idx_expense_items_chart_of_account_id ON expense_items(chart_of_account_id);

migrations/000072_add_expense_name_to_expenses.down.sql

@@ -0,0 +1,16 @@
+ALTER TABLE expenses ADD COLUMN IF NOT EXISTS expense_name VARCHAR(255) NOT NULL DEFAULT '';
+
+UPDATE expenses e
+SET expense_name = first_item.item
+FROM (
+    SELECT DISTINCT ON (expense_id) expense_id, item
+    FROM expense_items
+    WHERE COALESCE(item, '') != ''
+    ORDER BY expense_id, created_at ASC
+) first_item
+WHERE e.id = first_item.expense_id
+  AND COALESCE(e.expense_name, '') = '';
+
+CREATE INDEX IF NOT EXISTS idx_expenses_expense_name ON expenses(expense_name);
+DROP INDEX IF EXISTS idx_expense_items_item;
+ALTER TABLE expense_items DROP COLUMN IF EXISTS item;

migrations/000072_add_expense_name_to_expenses.up.sql

@@ -0,0 +1,21 @@
+ALTER TABLE expense_items ADD COLUMN IF NOT EXISTS item VARCHAR(255) NOT NULL DEFAULT '';
+
+DO $$
+BEGIN
+    IF EXISTS (
+        SELECT 1
+        FROM information_schema.columns
+        WHERE table_name = 'expenses'
+          AND column_name = 'expense_name'
+    ) THEN
+        UPDATE expense_items ei
+        SET item = e.expense_name
+        FROM expenses e
+        WHERE ei.expense_id = e.id
+          AND COALESCE(ei.item, '') = '';
+    END IF;
+END $$;
+
+DROP INDEX IF EXISTS idx_expenses_expense_name;
+ALTER TABLE expenses DROP COLUMN IF EXISTS expense_name;
+CREATE INDEX IF NOT EXISTS idx_expense_items_item ON expense_items(item);

migrations/000073_add_status_to_expenses.down.sql

@@ -0,0 +1,3 @@
+DROP INDEX IF EXISTS idx_expenses_status;
+ALTER TABLE expenses DROP CONSTRAINT IF EXISTS expenses_status_check;
+ALTER TABLE expenses DROP COLUMN IF EXISTS status;

migrations/000073_add_status_to_expenses.up.sql

@@ -0,0 +1,10 @@
+ALTER TABLE expenses ADD COLUMN IF NOT EXISTS status VARCHAR(20) NOT NULL DEFAULT 'draft';
+
+UPDATE expenses
+SET status = 'approved'
+WHERE status = 'draft';
+
+ALTER TABLE expenses DROP CONSTRAINT IF EXISTS expenses_status_check;
+ALTER TABLE expenses ADD CONSTRAINT expenses_status_check CHECK (status IN ('draft', 'sent', 'approved', 'cancel'));
+
+CREATE INDEX IF NOT EXISTS idx_expenses_status ON expenses(status);

migrations/000074_make_purchase_order_due_date_nullable.down.sql

@@ -0,0 +1,6 @@
+UPDATE purchase_orders
+SET due_date = transaction_date
+WHERE due_date IS NULL;
+
+ALTER TABLE purchase_orders
+    ALTER COLUMN due_date SET NOT NULL;

migrations/000074_make_purchase_order_due_date_nullable.up.sql

@@ -0,0 +1,2 @@
+ALTER TABLE purchase_orders
+    ALTER COLUMN due_date DROP NOT NULL;