Merge pull request 'feature/exclusive-summary' (#19) from feature/exclusive-summary into main

Reviewed-on: #19

internal/contract/analytics_contract.go

@@ -140,12 +140,12 @@ type PurchasingIngredientData struct {
 }
 
 type PurchasingVendorData struct {
-	VendorID           uuid.UUID `json:"vendor_id"`
-	VendorName         string    `json:"vendor_name"`
-	TotalCost          float64   `json:"total_cost"`
-	PurchaseOrderCount int64     `json:"purchase_order_count"`
-	IngredientCount    int64     `json:"ingredient_count"`
-	Quantity           float64   `json:"quantity"`
+	VendorID           *uuid.UUID `json:"vendor_id"`
+	VendorName         string     `json:"vendor_name"`
+	TotalCost          float64    `json:"total_cost"`
+	PurchaseOrderCount int64      `json:"purchase_order_count"`
+	IngredientCount    int64      `json:"ingredient_count"`
+	Quantity           float64    `json:"quantity"`
 }
 
 // ProductAnalyticsRequest represents the request for product analytics
@@ -339,6 +339,13 @@ type ExclusiveSummaryMonthlyRequest struct {
 	Month          string  `form:"month" validate:"required"`
 }
 
+type ExclusiveSummaryMTDRequest struct {
+	OrganizationID                uuid.UUID
+	OutletID                      *string `form:"outlet_id,omitempty"`
+	DateTo                        string  `form:"date_to" validate:"required"`
+	ExcludeGajiStaffFromReimburse bool    `form:"exclude_gaji_staff_from_reimburse"`
+}
+
 type ExclusiveSummaryPeriodResponse struct {
 	OrganizationID              uuid.UUID                           `json:"organization_id"`
 	OutletID                    *uuid.UUID                          `json:"outlet_id,omitempty"`

internal/contract/purchase_order_contract.go

@@ -7,7 +7,7 @@ import (
 )
 
 type CreatePurchaseOrderRequest struct {
-	VendorID          uuid.UUID                        `json:"vendor_id" validate:"required"`
+	VendorID          *uuid.UUID                       `json:"vendor_id,omitempty" validate:"omitempty"`
 	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,omitempty" validate:"omitempty"` // Format: YYYY-MM-DD
@@ -52,7 +52,8 @@ type UpdatePurchaseOrderItemRequest struct {
 type PurchaseOrderResponse struct {
 	ID              uuid.UUID                         `json:"id"`
 	OrganizationID  uuid.UUID                         `json:"organization_id"`
-	VendorID        uuid.UUID                         `json:"vendor_id"`
+	OutletID        *uuid.UUID                        `json:"outlet_id"`
+	VendorID        *uuid.UUID                        `json:"vendor_id"`
 	PONumber        string                            `json:"po_number"`
 	TransactionDate time.Time                         `json:"transaction_date"`
 	DueDate         *time.Time                        `json:"due_date"`

internal/entities/analytics.go

@@ -72,12 +72,12 @@ type PurchasingIngredientData struct {
 }
 
 type PurchasingVendorData struct {
-	VendorID           uuid.UUID `json:"vendor_id"`
-	VendorName         string    `json:"vendor_name"`
-	TotalCost          float64   `json:"total_cost"`
-	PurchaseOrderCount int64     `json:"purchase_order_count"`
-	IngredientCount    int64     `json:"ingredient_count"`
-	Quantity           float64   `json:"quantity"`
+	VendorID           *uuid.UUID `json:"vendor_id"`
+	VendorName         string     `json:"vendor_name"`
+	TotalCost          float64    `json:"total_cost"`
+	PurchaseOrderCount int64      `json:"purchase_order_count"`
+	IngredientCount    int64      `json:"ingredient_count"`
+	Quantity           float64    `json:"quantity"`
 }
 
 type ProductAnalytics struct {

internal/entities/purchase_order.go

@@ -11,7 +11,8 @@ 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"`
+	OutletID        *uuid.UUID `gorm:"type:uuid;index" json:"outlet_id" validate:"omitempty"`
+	VendorID        *uuid.UUID `gorm:"type:uuid" json:"vendor_id" validate:"omitempty"`
 	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"`
@@ -23,6 +24,7 @@ type PurchaseOrder struct {
 	UpdatedAt       time.Time  `gorm:"autoUpdateTime" json:"updated_at"`
 
 	Organization *Organization             `gorm:"foreignKey:OrganizationID" json:"organization,omitempty"`
+	Outlet       *Outlet                   `gorm:"foreignKey:OutletID" json:"outlet,omitempty"`
 	Vendor       *Vendor                   `gorm:"foreignKey:VendorID" json:"vendor,omitempty"`
 	Items        []PurchaseOrderItem       `gorm:"foreignKey:PurchaseOrderID" json:"items,omitempty"`
 	Attachments  []PurchaseOrderAttachment `gorm:"foreignKey:PurchaseOrderID" json:"attachments,omitempty"`

internal/handler/analytics_handler.go

@@ -266,3 +266,31 @@ func (h *AnalyticsHandler) GetExclusiveSummaryMonthly(c *gin.Context) {
 	contractResp := transformer.ExclusiveSummaryMonthlyModelToContract(response)
 	util.HandleResponse(c.Writer, c.Request, contract.BuildSuccessResponse(contractResp), "AnalyticsHandler::GetExclusiveSummaryMonthly")
 }
+
+func (h *AnalyticsHandler) GetExclusiveSummaryMTD(c *gin.Context) {
+	ctx := c.Request.Context()
+	contextInfo := appcontext.FromGinContext(ctx)
+
+	var req contract.ExclusiveSummaryMTDRequest
+	if err := c.ShouldBindQuery(&req); err != nil {
+		util.HandleResponse(c.Writer, c.Request, contract.BuildErrorResponse([]*contract.ResponseError{contract.NewResponseError("invalid_request", "AnalyticsHandler::GetExclusiveSummaryMTD", err.Error())}), "AnalyticsHandler::GetExclusiveSummaryMTD")
+		return
+	}
+
+	req.OrganizationID = contextInfo.OrganizationID
+	req.OutletID = h.resolveOutletID(c, contextInfo.OutletID)
+	modelReq, err := transformer.ExclusiveSummaryMTDContractToModel(&req)
+	if err != nil {
+		util.HandleResponse(c.Writer, c.Request, contract.BuildErrorResponse([]*contract.ResponseError{contract.NewResponseError("invalid_request", "AnalyticsHandler::GetExclusiveSummaryMTD", err.Error())}), "AnalyticsHandler::GetExclusiveSummaryMTD")
+		return
+	}
+
+	response, err := h.analyticsService.GetExclusiveSummaryMTD(ctx, modelReq)
+	if err != nil {
+		util.HandleResponse(c.Writer, c.Request, contract.BuildErrorResponse([]*contract.ResponseError{contract.NewResponseError("internal_error", "AnalyticsHandler::GetExclusiveSummaryMTD", err.Error())}), "AnalyticsHandler::GetExclusiveSummaryMTD")
+		return
+	}
+
+	contractResp := transformer.ExclusiveSummaryPeriodModelToContract(response)
+	util.HandleResponse(c.Writer, c.Request, contract.BuildSuccessResponse(contractResp), "AnalyticsHandler::GetExclusiveSummaryMTD")
+}

internal/mappers/purchase_order_mapper.go

@@ -13,6 +13,7 @@ func PurchaseOrderEntityToModel(entity *entities.PurchaseOrder) *models.Purchase
 	return &models.PurchaseOrder{
 		ID:              entity.ID,
 		OrganizationID:  entity.OrganizationID,
+		OutletID:        entity.OutletID,
 		VendorID:        entity.VendorID,
 		PONumber:        entity.PONumber,
 		TransactionDate: entity.TransactionDate,
@@ -34,6 +35,7 @@ func PurchaseOrderModelToEntity(model *models.PurchaseOrder) *entities.PurchaseO
 	return &entities.PurchaseOrder{
 		ID:              model.ID,
 		OrganizationID:  model.OrganizationID,
+		OutletID:        model.OutletID,
 		VendorID:        model.VendorID,
 		PONumber:        model.PONumber,
 		TransactionDate: model.TransactionDate,
@@ -55,6 +57,7 @@ func PurchaseOrderEntityToResponse(entity *entities.PurchaseOrder) *models.Purch
 	response := &models.PurchaseOrderResponse{
 		ID:              entity.ID,
 		OrganizationID:  entity.OrganizationID,
+		OutletID:        entity.OutletID,
 		VendorID:        entity.VendorID,
 		PONumber:        entity.PONumber,
 		TransactionDate: entity.TransactionDate,

internal/models/analytics.go

@@ -150,12 +150,12 @@ type PurchasingIngredientData struct {
 
 // PurchasingVendorData represents purchasing analytics for a vendor
 type PurchasingVendorData struct {
-	VendorID           uuid.UUID `json:"vendor_id"`
-	VendorName         string    `json:"vendor_name"`
-	TotalCost          float64   `json:"total_cost"`
-	PurchaseOrderCount int64     `json:"purchase_order_count"`
-	IngredientCount    int64     `json:"ingredient_count"`
-	Quantity           float64   `json:"quantity"`
+	VendorID           *uuid.UUID `json:"vendor_id"`
+	VendorName         string     `json:"vendor_name"`
+	TotalCost          float64    `json:"total_cost"`
+	PurchaseOrderCount int64      `json:"purchase_order_count"`
+	IngredientCount    int64      `json:"ingredient_count"`
+	Quantity           float64    `json:"quantity"`
 }
 
 // ProductAnalyticsRequest represents the request for product analytics
@@ -349,6 +349,13 @@ type ExclusiveSummaryMonthlyRequest struct {
 	Month          time.Time  `validate:"required"`
 }
 
+type ExclusiveSummaryMTDRequest struct {
+	OrganizationID                uuid.UUID  `validate:"required"`
+	OutletID                      *uuid.UUID `validate:"omitempty"`
+	DateTo                        time.Time  `validate:"required"`
+	ExcludeGajiStaffFromReimburse bool       `validate:"omitempty"`
+}
+
 type ExclusiveSummaryPeriodResponse struct {
 	OrganizationID              uuid.UUID                           `json:"organization_id"`
 	OutletID                    *uuid.UUID                          `json:"outlet_id,omitempty"`

internal/models/purchase_order.go

@@ -9,7 +9,8 @@ import (
 type PurchaseOrder struct {
 	ID              uuid.UUID  `json:"id"`
 	OrganizationID  uuid.UUID  `json:"organization_id"`
-	VendorID        uuid.UUID  `json:"vendor_id"`
+	OutletID        *uuid.UUID `json:"outlet_id"`
+	VendorID        *uuid.UUID `json:"vendor_id"`
 	PONumber        string     `json:"po_number"`
 	TransactionDate time.Time  `json:"transaction_date"`
 	DueDate         *time.Time `json:"due_date"`
@@ -44,7 +45,8 @@ type PurchaseOrderAttachment struct {
 type PurchaseOrderResponse struct {
 	ID              uuid.UUID                         `json:"id"`
 	OrganizationID  uuid.UUID                         `json:"organization_id"`
-	VendorID        uuid.UUID                         `json:"vendor_id"`
+	OutletID        *uuid.UUID                        `json:"outlet_id"`
+	VendorID        *uuid.UUID                        `json:"vendor_id"`
 	PONumber        string                            `json:"po_number"`
 	TransactionDate time.Time                         `json:"transaction_date"`
 	DueDate         *time.Time                        `json:"due_date"`
@@ -84,7 +86,8 @@ type PurchaseOrderAttachmentResponse struct {
 }
 
 type CreatePurchaseOrderRequest struct {
-	VendorID          uuid.UUID                        `json:"vendor_id"`
+	VendorID          *uuid.UUID                       `json:"vendor_id,omitempty"`
+	OutletID          *uuid.UUID                       `json:"outlet_id,omitempty"`
 	PONumber          string                           `json:"po_number"`
 	TransactionDate   time.Time                        `json:"transaction_date"`
 	DueDate           *time.Time                       `json:"due_date,omitempty"`

internal/processor/analytics_processor.go

@@ -21,6 +21,7 @@ type AnalyticsProcessor interface {
 	GetProfitLossAnalytics(ctx context.Context, req *models.ProfitLossAnalyticsRequest) (*models.ProfitLossAnalyticsResponse, error)
 	GetExclusiveSummaryPeriod(ctx context.Context, req *models.ExclusiveSummaryPeriodRequest) (*models.ExclusiveSummaryPeriodResponse, error)
 	GetExclusiveSummaryMonthly(ctx context.Context, req *models.ExclusiveSummaryMonthlyRequest) (*models.ExclusiveSummaryMonthlyResponse, error)
+	GetExclusiveSummaryMTD(ctx context.Context, req *models.ExclusiveSummaryMTDRequest) (*models.ExclusiveSummaryPeriodResponse, error)
 }
 
 type AnalyticsProcessorImpl struct {
@@ -735,6 +736,18 @@ func (p *AnalyticsProcessorImpl) GetExclusiveSummaryMonthly(ctx context.Context,
 	}, nil
 }
 
+func (p *AnalyticsProcessorImpl) GetExclusiveSummaryMTD(ctx context.Context, req *models.ExclusiveSummaryMTDRequest) (*models.ExclusiveSummaryPeriodResponse, error) {
+	mtdStart := time.Date(req.DateTo.Year(), req.DateTo.Month(), 1, 0, 0, 0, 0, req.DateTo.Location())
+
+	return p.buildExclusiveSummaryPeriod(ctx, &models.ExclusiveSummaryPeriodRequest{
+		OrganizationID:                req.OrganizationID,
+		OutletID:                      req.OutletID,
+		DateFrom:                      mtdStart,
+		DateTo:                        req.DateTo,
+		ExcludeGajiStaffFromReimburse: req.ExcludeGajiStaffFromReimburse,
+	})
+}
+
 func (p *AnalyticsProcessorImpl) buildExclusiveSummaryPeriod(ctx context.Context, req *models.ExclusiveSummaryPeriodRequest) (*models.ExclusiveSummaryPeriodResponse, error) {
 	result, err := p.analyticsRepo.GetExclusiveSummaryAnalytics(ctx, req.OrganizationID, req.OutletID, req.DateFrom, req.DateTo)
 	if err != nil {

internal/processor/analytics_processor_test.go

@@ -19,6 +19,8 @@ type analyticsRepositoryStub struct {
 	bankBalances            []entities.ExclusiveSummaryBankBalance
 	profitLossGroup         string
 	exclusiveSummaryCalls   int
+	exclusiveSummaryFrom    []time.Time
+	exclusiveSummaryTo      []time.Time
 }
 
 func (analyticsRepositoryStub) GetPaymentMethodAnalytics(context.Context, uuid.UUID, *uuid.UUID, time.Time, time.Time) ([]*entities.PaymentMethodAnalytics, error) {
@@ -50,7 +52,9 @@ func (s analyticsRepositoryStub) GetProfitLossAnalytics(_ context.Context, _ uui
 	return s.profitLossResult, nil
 }
 
-func (s *analyticsRepositoryStub) GetExclusiveSummaryAnalytics(context.Context, uuid.UUID, *uuid.UUID, time.Time, time.Time) (*entities.ExclusiveSummaryAnalytics, error) {
+func (s *analyticsRepositoryStub) GetExclusiveSummaryAnalytics(_ context.Context, _ uuid.UUID, _ *uuid.UUID, dateFrom, dateTo time.Time) (*entities.ExclusiveSummaryAnalytics, error) {
+	s.exclusiveSummaryFrom = append(s.exclusiveSummaryFrom, dateFrom)
+	s.exclusiveSummaryTo = append(s.exclusiveSummaryTo, dateTo)
 	if s.exclusiveSummaryCalls < len(s.exclusiveSummaryResults) {
 		result := s.exclusiveSummaryResults[s.exclusiveSummaryCalls]
 		s.exclusiveSummaryCalls++
@@ -393,3 +397,52 @@ func TestAnalyticsProcessorGetExclusiveSummaryMonthlyBuildsSummaryAndBuckets(t *
 	require.Equal(t, notes, *result.BankBalance[0].Notes)
 	require.Equal(t, 6, stub.exclusiveSummaryCalls)
 }
+
+func TestAnalyticsProcessorGetExclusiveSummaryMTDBuildsMonthToDateBreakdown(t *testing.T) {
+	location, err := time.LoadLocation("Asia/Jakarta")
+	require.NoError(t, err)
+	dateTo := time.Date(2026, 6, 18, 23, 59, 59, int(time.Second-time.Nanosecond), location)
+	stub := &analyticsRepositoryStub{
+		exclusiveSummaryResults: []*entities.ExclusiveSummaryAnalytics{
+			{
+				SalesTotal: 1000,
+				HPPBreakdown: []entities.ExclusiveSummaryCategoryTotal{
+					{CategoryCode: "RAW", CategoryName: "Raw Material", Amount: 400},
+				},
+				OperationalExpenseBreakdown: []entities.ExclusiveSummaryCategoryTotal{
+					{CategoryCode: "OPS", CategoryName: "Operational", Amount: 100},
+				},
+				DailySummary: []entities.ExclusiveSummaryDailySummary{
+					{Date: dateTo, TransactionCount: 2, TotalCost: 500},
+				},
+				DailyTransactions: []entities.ExclusiveSummaryDailyTransaction{
+					{Date: dateTo, CategoryCode: "RAW", CategoryName: "Raw Material", Description: "beras", Amount: 400, Source: "purchase_order"},
+					{Date: dateTo, CategoryCode: "OPS", CategoryName: "Operational", Description: "atk", Amount: 100, Source: "expense"},
+				},
+			},
+		},
+	}
+	processor := NewAnalyticsProcessorImpl(stub, expenseRepositoryStub{})
+
+	result, err := processor.GetExclusiveSummaryMTD(context.Background(), &models.ExclusiveSummaryMTDRequest{
+		OrganizationID: uuid.New(),
+		DateTo:         dateTo,
+	})
+
+	require.NoError(t, err)
+	require.NotNil(t, result)
+	require.Len(t, stub.exclusiveSummaryFrom, 1)
+	require.Equal(t, time.Date(2026, 6, 1, 0, 0, 0, 0, location), stub.exclusiveSummaryFrom[0])
+	require.Equal(t, dateTo, stub.exclusiveSummaryTo[0])
+	require.Equal(t, stub.exclusiveSummaryFrom[0], result.Period.DateFrom)
+	require.Equal(t, dateTo, result.Period.DateTo)
+	require.Equal(t, float64(1000), result.Summary.Sales)
+	require.Equal(t, float64(400), result.Summary.HPP)
+	require.Equal(t, float64(500), result.Summary.TotalCost)
+	require.Equal(t, float64(500), result.Summary.NetProfit)
+	require.Len(t, result.HPPBreakdown, 1)
+	require.Equal(t, float64(100), result.HPPBreakdown[0].Percentage)
+	require.Len(t, result.OperationalExpenseBreakdown, 1)
+	require.Len(t, result.DailySummary, 1)
+	require.Len(t, result.DailyTransactions, 2)
+}

internal/processor/purchase_order_processor.go

@@ -11,8 +11,8 @@ import (
 )
 
 type PurchaseOrderProcessor interface {
-	CreatePurchaseOrder(ctx context.Context, organizationID uuid.UUID, req *models.CreatePurchaseOrderRequest) (*models.PurchaseOrderResponse, error)
-	UpdatePurchaseOrder(ctx context.Context, id, organizationID uuid.UUID, req *models.UpdatePurchaseOrderRequest) (*models.PurchaseOrderResponse, error)
+	CreatePurchaseOrder(ctx context.Context, organizationID uuid.UUID, outletID *uuid.UUID, req *models.CreatePurchaseOrderRequest) (*models.PurchaseOrderResponse, error)
+	UpdatePurchaseOrder(ctx context.Context, id, organizationID uuid.UUID, outletID *uuid.UUID, req *models.UpdatePurchaseOrderRequest) (*models.PurchaseOrderResponse, error)
 	DeletePurchaseOrder(ctx context.Context, id, organizationID uuid.UUID) error
 	GetPurchaseOrderByID(ctx context.Context, id, organizationID uuid.UUID) (*models.PurchaseOrderResponse, error)
 	ListPurchaseOrders(ctx context.Context, organizationID uuid.UUID, filters map[string]interface{}, page, limit int) ([]*models.PurchaseOrderResponse, int, error)
@@ -54,11 +54,13 @@ func NewPurchaseOrderProcessorImpl(
 	}
 }
 
-func (p *PurchaseOrderProcessorImpl) CreatePurchaseOrder(ctx context.Context, organizationID uuid.UUID, req *models.CreatePurchaseOrderRequest) (*models.PurchaseOrderResponse, error) {
-	// Check if vendor exists and belongs to organization
-	_, err := p.vendorRepo.GetByIDAndOrganizationID(ctx, req.VendorID, organizationID)
-	if err != nil {
-		return nil, fmt.Errorf("vendor not found: %w", err)
+func (p *PurchaseOrderProcessorImpl) CreatePurchaseOrder(ctx context.Context, organizationID uuid.UUID, outletID *uuid.UUID, req *models.CreatePurchaseOrderRequest) (*models.PurchaseOrderResponse, error) {
+	// Check if vendor exists and belongs to organization when provided.
+	if req.VendorID != nil {
+		_, err := p.vendorRepo.GetByIDAndOrganizationID(ctx, *req.VendorID, organizationID)
+		if err != nil {
+			return nil, fmt.Errorf("vendor not found: %w", err)
+		}
 	}
 
 	// Check if PO number already exists in organization
@@ -107,12 +109,13 @@ func (p *PurchaseOrderProcessorImpl) CreatePurchaseOrder(ctx context.Context, or
 	// Calculate total amount
 	totalAmount := 0.0
 	for _, item := range req.Items {
-		totalAmount += item.Amount
+		totalAmount += calculatePurchaseOrderItemTotal(item.Quantity, item.Amount)
 	}
 
 	// Create purchase order entity
 	poEntity := &entities.PurchaseOrder{
 		OrganizationID:  organizationID,
+		OutletID:        outletID,
 		VendorID:        req.VendorID,
 		PONumber:        req.PONumber,
 		TransactionDate: req.TransactionDate,
@@ -173,12 +176,15 @@ func (p *PurchaseOrderProcessorImpl) CreatePurchaseOrder(ctx context.Context, or
 	return mappers.PurchaseOrderEntityToResponse(createdPO), nil
 }
 
-func (p *PurchaseOrderProcessorImpl) UpdatePurchaseOrder(ctx context.Context, id, organizationID uuid.UUID, req *models.UpdatePurchaseOrderRequest) (*models.PurchaseOrderResponse, error) {
+func (p *PurchaseOrderProcessorImpl) UpdatePurchaseOrder(ctx context.Context, id, organizationID uuid.UUID, outletID *uuid.UUID, req *models.UpdatePurchaseOrderRequest) (*models.PurchaseOrderResponse, error) {
 	// Get existing purchase order
 	poEntity, err := p.purchaseOrderRepo.GetByIDAndOrganizationID(ctx, id, organizationID)
 	if err != nil {
 		return nil, fmt.Errorf("purchase order not found: %w", err)
 	}
+	if poEntity.OutletID == nil && outletID != nil {
+		poEntity.OutletID = outletID
+	}
 
 	// Check if vendor exists and belongs to organization (if vendor is being updated)
 	if req.VendorID != nil {
@@ -186,7 +192,7 @@ func (p *PurchaseOrderProcessorImpl) UpdatePurchaseOrder(ctx context.Context, id
 		if err != nil {
 			return nil, fmt.Errorf("vendor not found: %w", err)
 		}
-		poEntity.VendorID = *req.VendorID
+		poEntity.VendorID = req.VendorID
 	}
 
 	// Check if PO number already exists (if PO number is being updated)
@@ -277,7 +283,7 @@ func (p *PurchaseOrderProcessorImpl) UpdatePurchaseOrder(ctx context.Context, id
 				UnitID:             unitID,
 				Amount:             amount,
 			}
-			totalAmount += amount
+			totalAmount += calculatePurchaseOrderItemTotal(quantity, amount)
 		}
 
 		// Delete and recreate only after all replacement items are valid.
@@ -447,7 +453,7 @@ func (p *PurchaseOrderProcessorImpl) UpdatePurchaseOrderStatus(ctx context.Conte
 			// Calculate unit cost in ingredient's base unit
 			unitCost := 0.0
 			if quantityToAdd > 0 {
-				unitCost = item.Amount / quantityToAdd
+				unitCost = calculatePurchaseOrderItemTotal(item.Quantity, item.Amount) / quantityToAdd
 			}
 
 			// Create inventory movement for ingredient purchase
@@ -476,7 +482,12 @@ func (p *PurchaseOrderProcessorImpl) UpdatePurchaseOrderStatus(ctx context.Conte
 	}
 
 	// Update the purchase order status
-	err = p.purchaseOrderRepo.UpdateStatus(ctx, id, status)
+	statusOutletID := po.OutletID
+	if statusOutletID == nil && outletID != uuid.Nil {
+		statusOutletID = &outletID
+	}
+
+	err = p.purchaseOrderRepo.UpdateStatusAndOutlet(ctx, id, status, statusOutletID)
 	if err != nil {
 		return nil, fmt.Errorf("failed to update purchase order status: %w", err)
 	}
@@ -506,3 +517,11 @@ func (p *PurchaseOrderProcessorImpl) validatePurchaseCategory(ctx context.Contex
 
 	return category, nil
 }
+
+func calculatePurchaseOrderItemTotal(quantity *float64, amount float64) float64 {
+	if quantity == nil {
+		return amount
+	}
+
+	return *quantity * amount
+}

internal/processor/purchase_order_repository.go

@@ -19,6 +19,7 @@ type PurchaseOrderRepository interface {
 	GetByStatus(ctx context.Context, organizationID uuid.UUID, status string) ([]*entities.PurchaseOrder, error)
 	GetOverdue(ctx context.Context, organizationID uuid.UUID) ([]*entities.PurchaseOrder, error)
 	UpdateStatus(ctx context.Context, id uuid.UUID, status string) error
+	UpdateStatusAndOutlet(ctx context.Context, id uuid.UUID, status string, outletID *uuid.UUID) error
 	UpdateTotalAmount(ctx context.Context, id uuid.UUID, totalAmount float64) error
 	CreateItem(ctx context.Context, item *entities.PurchaseOrderItem) error
 	UpdateItem(ctx context.Context, item *entities.PurchaseOrderItem) error

internal/repository/analytics_repository.go

@@ -39,6 +39,10 @@ func (r *AnalyticsRepositoryImpl) resolveOutletID(query *gorm.DB, outletID *uuid
 	return query
 }
 
+func purchaseOrderItemTotalAmountSQL() string {
+	return "CASE WHEN pc.type = '" + string(entities.PurchaseCategoryTypeRawMaterial) + "' THEN COALESCE(poi.quantity, 0) * poi.amount ELSE poi.amount END"
+}
+
 func (r *AnalyticsRepositoryImpl) GetPaymentMethodAnalytics(ctx context.Context, organizationID uuid.UUID, outletID *uuid.UUID, dateFrom, dateTo time.Time) ([]*entities.PaymentMethodAnalytics, error) {
 	var results []*entities.PaymentMethodAnalytics
 
@@ -153,18 +157,19 @@ func (r *AnalyticsRepositoryImpl) getPurchaseOrderPurchasingAnalytics(ctx contex
 	summaryQuery := r.db.WithContext(ctx).
 		Table("purchase_orders po").
 		Select(`
-			COALESCE(SUM(poi.amount), 0) as total_purchases,
+			COALESCE(SUM(`+purchaseOrderItemTotalAmountSQL()+`), 0) as total_purchases,
 			COUNT(DISTINCT po.id) as total_purchase_orders,
 			COALESCE(SUM(poi.quantity), 0) as total_quantity,
 			CASE
 				WHEN COUNT(DISTINCT po.id) > 0
-				THEN COALESCE(SUM(poi.amount), 0) / COUNT(DISTINCT po.id)
+				THEN COALESCE(SUM(`+purchaseOrderItemTotalAmountSQL()+`), 0) / COUNT(DISTINCT po.id)
 				ELSE 0
 			END as average_purchase_order_value,
 			COUNT(DISTINCT i.id) as total_ingredients,
-			COUNT(DISTINCT po.vendor_id) as total_vendors
+			COUNT(DISTINCT COALESCE(po.vendor_id::text, 'no-vendor')) as total_vendors
 		`).
 		Joins("LEFT JOIN purchase_order_items poi ON poi.purchase_order_id = po.id").
+		Joins("LEFT JOIN purchase_categories pc ON poi.purchase_category_id = pc.id").
 		Joins("LEFT JOIN ingredients i ON poi.ingredient_id = i.id").
 		Joins("LEFT JOIN units u ON poi.unit_id = u.id").
 		Where("po.organization_id = ?", organizationID).
@@ -193,13 +198,14 @@ func (r *AnalyticsRepositoryImpl) getPurchaseOrderPurchasingAnalytics(ctx contex
 		Table("purchase_orders po").
 		Select(`
 			`+dateFormat+` as date,
-			COALESCE(SUM(poi.amount), 0) as purchases,
+			COALESCE(SUM(`+purchaseOrderItemTotalAmountSQL()+`), 0) as purchases,
 			COUNT(DISTINCT po.id) as purchase_orders,
 			COALESCE(SUM(poi.quantity), 0) as quantity,
 			COUNT(DISTINCT i.id) as ingredients,
-			COUNT(DISTINCT po.vendor_id) as vendors
+			COUNT(DISTINCT COALESCE(po.vendor_id::text, 'no-vendor')) as vendors
 		`).
 		Joins("LEFT JOIN purchase_order_items poi ON poi.purchase_order_id = po.id").
+		Joins("LEFT JOIN purchase_categories pc ON poi.purchase_category_id = pc.id").
 		Joins("LEFT JOIN ingredients i ON poi.ingredient_id = i.id").
 		Joins("LEFT JOIN units u ON poi.unit_id = u.id").
 		Where("po.organization_id = ?", organizationID).
@@ -220,15 +226,16 @@ func (r *AnalyticsRepositoryImpl) getPurchaseOrderPurchasingAnalytics(ctx contex
 			i.id as ingredient_id,
 			i.name as ingredient_name,
 			COALESCE(SUM(poi.quantity), 0) as quantity,
-			COALESCE(SUM(poi.amount), 0) as total_cost,
+			COALESCE(SUM(`+purchaseOrderItemTotalAmountSQL()+`), 0) as total_cost,
 			CASE
 				WHEN SUM(poi.quantity) > 0
-				THEN COALESCE(SUM(poi.amount), 0) / SUM(poi.quantity)
+				THEN COALESCE(SUM(`+purchaseOrderItemTotalAmountSQL()+`), 0) / SUM(poi.quantity)
 				ELSE 0
 			END as average_unit_cost,
 			COUNT(DISTINCT po.id) as purchase_order_count
 		`).
 		Joins("JOIN purchase_orders po ON poi.purchase_order_id = po.id").
+		Joins("JOIN purchase_categories pc ON poi.purchase_category_id = pc.id").
 		Joins("JOIN ingredients i ON poi.ingredient_id = i.id").
 		Joins("LEFT JOIN units u ON poi.unit_id = u.id").
 		Where("po.organization_id = ?", organizationID).
@@ -247,20 +254,21 @@ func (r *AnalyticsRepositoryImpl) getPurchaseOrderPurchasingAnalytics(ctx contex
 		Table("purchase_orders po").
 		Select(`
 			v.id as vendor_id,
-			v.name as vendor_name,
-			COALESCE(SUM(poi.amount), 0) as total_cost,
+			COALESCE(v.name, 'No Vendor') as vendor_name,
+			COALESCE(SUM(`+purchaseOrderItemTotalAmountSQL()+`), 0) as total_cost,
 			COUNT(DISTINCT po.id) as purchase_order_count,
 			COUNT(DISTINCT i.id) as ingredient_count,
 			COALESCE(SUM(poi.quantity), 0) as quantity
 		`).
-		Joins("JOIN vendors v ON po.vendor_id = v.id").
+		Joins("LEFT JOIN vendors v ON po.vendor_id = v.id").
 		Joins("LEFT JOIN purchase_order_items poi ON poi.purchase_order_id = po.id").
+		Joins("LEFT JOIN purchase_categories pc ON poi.purchase_category_id = pc.id").
 		Joins("LEFT JOIN ingredients i ON poi.ingredient_id = i.id").
 		Joins("LEFT JOIN units u ON poi.unit_id = u.id").
 		Where("po.organization_id = ?", organizationID).
 		Where("po.status != ?", "cancelled").
 		Where("po.transaction_date >= ? AND po.transaction_date <= ?", dateFrom, dateTo).
-		Group("v.id, v.name").
+		Group("v.id, COALESCE(v.name, 'No Vendor')").
 		Order("total_cost DESC")
 	vendorQuery = r.applyPurchaseOrderItemOutletFilter(vendorQuery, outletID)
 
@@ -281,7 +289,7 @@ func (r *AnalyticsRepositoryImpl) applyPurchaseOrderItemOutletFilter(query *gorm
 	if outletID == nil {
 		return query
 	}
-	return query.Where("(i.outlet_id = ? OR u.outlet_id = ?)", *outletID, *outletID)
+	return query.Where("po.outlet_id = ?", *outletID)
 }
 
 func (r *AnalyticsRepositoryImpl) GetProductAnalytics(ctx context.Context, organizationID uuid.UUID, outletID *uuid.UUID, dateFrom, dateTo time.Time, limit int) ([]*entities.ProductAnalytics, error) {
@@ -717,7 +725,7 @@ func (r *AnalyticsRepositoryImpl) GetExclusiveSummaryAnalytics(ctx context.Conte
 		return nil, err
 	}
 
-	operationalExpenseBreakdown, err := r.getExclusiveSummaryOperationalExpenseBreakdown(ctx, organizationID, dateFrom, dateTo)
+	operationalExpenseBreakdown, err := r.getExclusiveSummaryOperationalExpenseBreakdown(ctx, organizationID, outletID, dateFrom, dateTo)
 	if err != nil {
 		return nil, err
 	}
@@ -750,7 +758,7 @@ func (r *AnalyticsRepositoryImpl) getExclusiveSummaryHPPBreakdown(ctx context.Co
 		Select(`
 			pc.code as category_code,
 			pc.name as category_name,
-			COALESCE(SUM(poi.amount), 0) as amount
+			COALESCE(SUM(`+purchaseOrderItemTotalAmountSQL()+`), 0) as amount
 		`).
 		Joins("JOIN purchase_orders po ON poi.purchase_order_id = po.id").
 		Joins("JOIN purchase_categories pc ON poi.purchase_category_id = pc.id").
@@ -770,22 +778,25 @@ func (r *AnalyticsRepositoryImpl) getExclusiveSummaryHPPBreakdown(ctx context.Co
 	return results, err
 }
 
-func (r *AnalyticsRepositoryImpl) getExclusiveSummaryOperationalExpenseBreakdown(ctx context.Context, organizationID uuid.UUID, dateFrom, dateTo time.Time) ([]entities.ExclusiveSummaryCategoryTotal, error) {
+func (r *AnalyticsRepositoryImpl) getExclusiveSummaryOperationalExpenseBreakdown(ctx context.Context, organizationID uuid.UUID, outletID *uuid.UUID, dateFrom, dateTo time.Time) ([]entities.ExclusiveSummaryCategoryTotal, error) {
 	var results []entities.ExclusiveSummaryCategoryTotal
 
-	err := r.db.WithContext(ctx).
+	query := r.db.WithContext(ctx).
 		Table("purchase_order_items poi").
 		Select(`
 			pc.code as category_code,
 			pc.name as category_name,
-			COALESCE(SUM(poi.amount), 0) as amount
+			COALESCE(SUM(`+purchaseOrderItemTotalAmountSQL()+`), 0) as amount
 		`).
 		Joins("JOIN purchase_orders po ON poi.purchase_order_id = po.id").
 		Joins("JOIN purchase_categories pc ON poi.purchase_category_id = pc.id").
 		Where("po.organization_id = ?", organizationID).
 		Where("pc.type = ?", entities.PurchaseCategoryTypeExpense).
 		Where("po.status = ?", "received").
-		Where("po.transaction_date >= ? AND po.transaction_date <= ?", dateFrom, dateTo).
+		Where("po.transaction_date >= ? AND po.transaction_date <= ?", dateFrom, dateTo)
+	query = r.applyPurchaseOrderItemOutletFilter(query, outletID)
+
+	err := query.
 		Group("pc.id, pc.code, pc.name, pc.sort_order").
 		Order("pc.sort_order ASC, pc.name ASC").
 		Scan(&results).Error
@@ -830,8 +841,8 @@ func (r *AnalyticsRepositoryImpl) exclusiveSummaryPurchaseOrderItemQuery(organiz
 	}
 
 	if outletID != nil {
-		outletFilter = "AND (pc.type = ? OR i.outlet_id = ? OR u.outlet_id = ?)"
-		args = append(args, entities.PurchaseCategoryTypeExpense, *outletID, *outletID)
+		outletFilter = "AND po.outlet_id = ?"
+		args = append(args, *outletID)
 	}
 
 	query := `
@@ -840,7 +851,7 @@ func (r *AnalyticsRepositoryImpl) exclusiveSummaryPurchaseOrderItemQuery(organiz
 			pc.code as category_code,
 			pc.name as category_name,
 			COALESCE(NULLIF(poi.description, ''), i.name, pc.name) as description,
-			poi.amount as amount,
+			` + purchaseOrderItemTotalAmountSQL() + ` as amount,
 			'purchase_order' as source
 		FROM purchase_order_items poi
 		JOIN purchase_orders po ON poi.purchase_order_id = po.id

internal/repository/purchase_order_repository.go

@@ -196,6 +196,18 @@ func (r *PurchaseOrderRepositoryImpl) UpdateStatus(ctx context.Context, id uuid.
 		Update("status", status).Error
 }
 
+func (r *PurchaseOrderRepositoryImpl) UpdateStatusAndOutlet(ctx context.Context, id uuid.UUID, status string, outletID *uuid.UUID) error {
+	updates := map[string]interface{}{"status": status}
+	if outletID != nil {
+		updates["outlet_id"] = *outletID
+	}
+
+	return r.db.WithContext(ctx).
+		Model(&entities.PurchaseOrder{}).
+		Where("id = ?", id).
+		Updates(updates).Error
+}
+
 func (r *PurchaseOrderRepositoryImpl) UpdateTotalAmount(ctx context.Context, id uuid.UUID, totalAmount float64) error {
 	return r.db.WithContext(ctx).
 		Model(&entities.PurchaseOrder{}).

internal/router/router.go

@@ -339,6 +339,7 @@ func (r *Router) addAppRoutes(rg *gin.Engine) {
 				analytics.GET("/profit-loss", r.analyticsHandler.GetProfitLossAnalytics)
 				analytics.GET("/exclusive-summary/period", r.analyticsHandler.GetExclusiveSummaryPeriod)
 				analytics.GET("/exclusive-summary/monthly", r.analyticsHandler.GetExclusiveSummaryMonthly)
+				analytics.GET("/exclusive-summary/mtd", r.analyticsHandler.GetExclusiveSummaryMTD)
 			}
 
 			tables := protected.Group("/tables")

internal/service/analytics_service.go

@@ -20,6 +20,7 @@ type AnalyticsService interface {
 	GetProfitLossAnalytics(ctx context.Context, req *models.ProfitLossAnalyticsRequest) (*models.ProfitLossAnalyticsResponse, error)
 	GetExclusiveSummaryPeriod(ctx context.Context, req *models.ExclusiveSummaryPeriodRequest) (*models.ExclusiveSummaryPeriodResponse, error)
 	GetExclusiveSummaryMonthly(ctx context.Context, req *models.ExclusiveSummaryMonthlyRequest) (*models.ExclusiveSummaryMonthlyResponse, error)
+	GetExclusiveSummaryMTD(ctx context.Context, req *models.ExclusiveSummaryMTDRequest) (*models.ExclusiveSummaryPeriodResponse, error)
 }
 
 type AnalyticsServiceImpl struct {
@@ -349,6 +350,19 @@ func (s *AnalyticsServiceImpl) GetExclusiveSummaryMonthly(ctx context.Context, r
 	return response, nil
 }
 
+func (s *AnalyticsServiceImpl) GetExclusiveSummaryMTD(ctx context.Context, req *models.ExclusiveSummaryMTDRequest) (*models.ExclusiveSummaryPeriodResponse, error) {
+	if err := s.validateExclusiveSummaryMTDRequest(req); err != nil {
+		return nil, fmt.Errorf("validation error: %w", err)
+	}
+
+	response, err := s.analyticsProcessor.GetExclusiveSummaryMTD(ctx, req)
+	if err != nil {
+		return nil, fmt.Errorf("failed to get exclusive summary mtd: %w", err)
+	}
+
+	return response, nil
+}
+
 func (s *AnalyticsServiceImpl) validateExclusiveSummaryPeriodRequest(req *models.ExclusiveSummaryPeriodRequest) error {
 	if req == nil {
 		return fmt.Errorf("request cannot be nil")
@@ -373,6 +387,22 @@ func (s *AnalyticsServiceImpl) validateExclusiveSummaryPeriodRequest(req *models
 	return nil
 }
 
+func (s *AnalyticsServiceImpl) validateExclusiveSummaryMTDRequest(req *models.ExclusiveSummaryMTDRequest) error {
+	if req == nil {
+		return fmt.Errorf("request cannot be nil")
+	}
+
+	if req.OrganizationID == uuid.Nil {
+		return fmt.Errorf("organization_id is required")
+	}
+
+	if req.DateTo.IsZero() {
+		return fmt.Errorf("date_to is required")
+	}
+
+	return nil
+}
+
 func (s *AnalyticsServiceImpl) validateExclusiveSummaryMonthlyRequest(req *models.ExclusiveSummaryMonthlyRequest) error {
 	if req == nil {
 		return fmt.Errorf("request cannot be nil")

internal/service/analytics_service_test.go

@@ -49,6 +49,10 @@ func (analyticsProcessorStub) GetExclusiveSummaryMonthly(context.Context, *model
 	return &models.ExclusiveSummaryMonthlyResponse{}, nil
 }
 
+func (analyticsProcessorStub) GetExclusiveSummaryMTD(context.Context, *models.ExclusiveSummaryMTDRequest) (*models.ExclusiveSummaryPeriodResponse, error) {
+	return &models.ExclusiveSummaryPeriodResponse{}, nil
+}
+
 func TestAnalyticsServiceGetPurchasingAnalyticsValidation(t *testing.T) {
 	service := NewAnalyticsServiceImpl(analyticsProcessorStub{})
 	now := time.Date(2026, 5, 1, 0, 0, 0, 0, time.UTC)
@@ -254,3 +258,44 @@ func TestAnalyticsServiceGetExclusiveSummaryMonthlyValidation(t *testing.T) {
 	require.Error(t, err)
 	require.Contains(t, err.Error(), "month is required")
 }
+
+func TestAnalyticsServiceGetExclusiveSummaryMTDValidation(t *testing.T) {
+	service := NewAnalyticsServiceImpl(analyticsProcessorStub{})
+	now := time.Date(2026, 6, 18, 23, 59, 59, 0, time.UTC)
+
+	tests := []struct {
+		name    string
+		req     *models.ExclusiveSummaryMTDRequest
+		wantErr string
+	}{
+		{
+			name:    "nil request",
+			req:     nil,
+			wantErr: "request cannot be nil",
+		},
+		{
+			name: "missing organization",
+			req: &models.ExclusiveSummaryMTDRequest{
+				DateTo: now,
+			},
+			wantErr: "organization_id is required",
+		},
+		{
+			name: "missing date_to",
+			req: &models.ExclusiveSummaryMTDRequest{
+				OrganizationID: uuid.New(),
+			},
+			wantErr: "date_to is required",
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			resp, err := service.GetExclusiveSummaryMTD(context.Background(), tt.req)
+
+			require.Nil(t, resp)
+			require.Error(t, err)
+			require.Contains(t, err.Error(), tt.wantErr)
+		})
+	}
+}

internal/service/purchase_order_service.go

@@ -40,7 +40,12 @@ func (s *PurchaseOrderServiceImpl) CreatePurchaseOrder(ctx context.Context, apct
 		return contract.BuildErrorResponse([]*contract.ResponseError{errorResp})
 	}
 
-	poResponse, err := s.purchaseOrderProcessor.CreatePurchaseOrder(ctx, apctx.OrganizationID, modelReq)
+	var outletID *uuid.UUID
+	if apctx.OutletID != uuid.Nil {
+		outletID = &apctx.OutletID
+	}
+
+	poResponse, err := s.purchaseOrderProcessor.CreatePurchaseOrder(ctx, apctx.OrganizationID, outletID, modelReq)
 	if err != nil {
 		errorResp := contract.NewResponseError(constants.InternalServerErrorCode, constants.PurchaseOrderServiceEntity, err.Error())
 		return contract.BuildErrorResponse([]*contract.ResponseError{errorResp})
@@ -57,7 +62,12 @@ func (s *PurchaseOrderServiceImpl) UpdatePurchaseOrder(ctx context.Context, apct
 		return contract.BuildErrorResponse([]*contract.ResponseError{errorResp})
 	}
 
-	poResponse, err := s.purchaseOrderProcessor.UpdatePurchaseOrder(ctx, id, apctx.OrganizationID, modelReq)
+	var outletID *uuid.UUID
+	if apctx.OutletID != uuid.Nil {
+		outletID = &apctx.OutletID
+	}
+
+	poResponse, err := s.purchaseOrderProcessor.UpdatePurchaseOrder(ctx, id, apctx.OrganizationID, outletID, modelReq)
 	if err != nil {
 		errorResp := contract.NewResponseError(constants.InternalServerErrorCode, constants.PurchaseOrderServiceEntity, err.Error())
 		return contract.BuildErrorResponse([]*contract.ResponseError{errorResp})

internal/transformer/analytics_transformer.go

@@ -604,6 +604,27 @@ func ExclusiveSummaryMonthlyContractToModel(req *contract.ExclusiveSummaryMonthl
 	}, nil
 }
 
+func ExclusiveSummaryMTDContractToModel(req *contract.ExclusiveSummaryMTDRequest) (*models.ExclusiveSummaryMTDRequest, error) {
+	if req == nil {
+		return nil, fmt.Errorf("request cannot be nil")
+	}
+
+	dateTo, err := parseFlexibleDateToJakartaTime(req.DateTo, true)
+	if err != nil {
+		return nil, fmt.Errorf("invalid date_to: %w", err)
+	}
+	if dateTo == nil {
+		return nil, fmt.Errorf("date_to is required")
+	}
+
+	return &models.ExclusiveSummaryMTDRequest{
+		OrganizationID:                req.OrganizationID,
+		OutletID:                      parseOutletID(req.OutletID),
+		DateTo:                        *dateTo,
+		ExcludeGajiStaffFromReimburse: req.ExcludeGajiStaffFromReimburse,
+	}, nil
+}
+
 func ExclusiveSummaryPeriodModelToContract(resp *models.ExclusiveSummaryPeriodResponse) *contract.ExclusiveSummaryPeriodResponse {
 	if resp == nil {
 		return nil
@@ -772,6 +793,22 @@ func parseISODateToJakartaTime(dateStr string, endOfDay bool) (*time.Time, error
 	return &result, nil
 }
 
+func parseFlexibleDateToJakartaTime(dateStr string, endOfDay bool) (*time.Time, error) {
+	if dateStr == "" {
+		return nil, nil
+	}
+
+	fromTime, toTime, err := util.ParseDateRangeToJakartaTime(dateStr, dateStr)
+	if err == nil {
+		if endOfDay {
+			return toTime, nil
+		}
+		return fromTime, nil
+	}
+
+	return parseISODateToJakartaTime(dateStr, endOfDay)
+}
+
 func parseMonthToJakartaTime(month string) (time.Time, error) {
 	location, err := time.LoadLocation("Asia/Jakarta")
 	if err != nil {

internal/transformer/purchase_order_transformer.go

@@ -120,6 +120,7 @@ func PurchaseOrderModelResponseToResponse(po *models.PurchaseOrderResponse) *con
 	response := &contract.PurchaseOrderResponse{
 		ID:              po.ID,
 		OrganizationID:  po.OrganizationID,
+		OutletID:        po.OutletID,
 		VendorID:        po.VendorID,
 		PONumber:        po.PONumber,
 		TransactionDate: po.TransactionDate,

internal/transformer/purchase_order_transformer_test.go

@@ -12,12 +12,13 @@ import (
 )
 
 func TestCreatePurchaseOrderRequestToModelAllowsMissingDueDate(t *testing.T) {
+	vendorID := uuid.New()
 	ingredientID := uuid.New()
 	quantity := 1.0
 	unitID := uuid.New()
 
 	result, err := CreatePurchaseOrderRequestToModel(&contract.CreatePurchaseOrderRequest{
-		VendorID:        uuid.New(),
+		VendorID:        &vendorID,
 		PONumber:        "PO-001",
 		TransactionDate: "2026-05-29",
 		Items: []contract.CreatePurchaseOrderItemRequest{
@@ -35,9 +36,10 @@ func TestCreatePurchaseOrderRequestToModelAllowsMissingDueDate(t *testing.T) {
 }
 
 func TestPurchaseOrderModelResponseToResponseIncludesNullDueDate(t *testing.T) {
+	vendorID := uuid.New()
 	result := PurchaseOrderModelResponseToResponse(&models.PurchaseOrderResponse{
 		ID:       uuid.New(),
-		VendorID: uuid.New(),
+		VendorID: &vendorID,
 		PONumber: "PO-001",
 	})
 
@@ -45,3 +47,19 @@ func TestPurchaseOrderModelResponseToResponseIncludesNullDueDate(t *testing.T) {
 	require.NoError(t, err)
 	require.Contains(t, string(payload), `"due_date":null`)
 }
+
+func TestCreatePurchaseOrderRequestToModelAllowsMissingVendor(t *testing.T) {
+	result, err := CreatePurchaseOrderRequestToModel(&contract.CreatePurchaseOrderRequest{
+		PONumber:        "PO-001",
+		TransactionDate: "2026-05-29",
+		Items: []contract.CreatePurchaseOrderItemRequest{
+			{
+				PurchaseCategoryID: uuid.New(),
+				Amount:             1000,
+			},
+		},
+	})
+
+	require.NoError(t, err)
+	require.Nil(t, result.VendorID)
+}

internal/validator/purchase_order_validator.go

@@ -29,8 +29,8 @@ func (v *PurchaseOrderValidatorImpl) ValidateCreatePurchaseOrderRequest(req *con
 		return errors.New("request body is required"), constants.MissingFieldErrorCode
 	}
 
-	if req.VendorID == uuid.Nil {
-		return errors.New("vendor_id is required"), constants.MissingFieldErrorCode
+	if req.VendorID != nil && *req.VendorID == uuid.Nil {
+		return errors.New("vendor_id cannot be empty"), constants.MalformedFieldErrorCode
 	}
 
 	if strings.TrimSpace(req.PONumber) == "" {

internal/validator/purchase_order_validator_test.go

@@ -11,12 +11,13 @@ import (
 )
 
 func validCreatePurchaseOrderRequest() *contract.CreatePurchaseOrderRequest {
+	vendorID := uuid.New()
 	ingredientID := uuid.New()
 	quantity := 1.0
 	unitID := uuid.New()
 
 	return &contract.CreatePurchaseOrderRequest{
-		VendorID:        uuid.New(),
+		VendorID:        &vendorID,
 		PONumber:        "PO-001",
 		TransactionDate: "2026-05-29",
 		Items: []contract.CreatePurchaseOrderItemRequest{
@@ -31,6 +32,30 @@ func validCreatePurchaseOrderRequest() *contract.CreatePurchaseOrderRequest {
 	}
 }
 
+func TestPurchaseOrderValidatorCreateAllowsMissingVendor(t *testing.T) {
+	validator := NewPurchaseOrderValidator()
+	req := validCreatePurchaseOrderRequest()
+	req.VendorID = nil
+
+	err, code := validator.ValidateCreatePurchaseOrderRequest(req)
+
+	require.NoError(t, err)
+	require.Empty(t, code)
+}
+
+func TestPurchaseOrderValidatorCreateRejectsEmptyVendor(t *testing.T) {
+	validator := NewPurchaseOrderValidator()
+	req := validCreatePurchaseOrderRequest()
+	vendorID := uuid.Nil
+	req.VendorID = &vendorID
+
+	err, code := validator.ValidateCreatePurchaseOrderRequest(req)
+
+	require.Error(t, err)
+	require.Equal(t, constants.MalformedFieldErrorCode, code)
+	require.Contains(t, err.Error(), "vendor_id cannot be empty")
+}
+
 func TestPurchaseOrderValidatorCreateAllowsMissingDueDate(t *testing.T) {
 	validator := NewPurchaseOrderValidator()
 

migrations/000081_make_purchase_order_vendor_nullable.down.sql

@@ -0,0 +1,2 @@
+ALTER TABLE purchase_orders
+    ALTER COLUMN vendor_id SET NOT NULL;

migrations/000081_make_purchase_order_vendor_nullable.up.sql

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

migrations/000082_add_outlet_id_to_purchase_orders.down.sql

@@ -0,0 +1,4 @@
+DROP INDEX IF EXISTS idx_purchase_orders_outlet_id;
+
+ALTER TABLE purchase_orders
+DROP COLUMN IF EXISTS outlet_id;

migrations/000082_add_outlet_id_to_purchase_orders.up.sql

@@ -0,0 +1,66 @@
+ALTER TABLE purchase_orders
+ADD COLUMN IF NOT EXISTS outlet_id UUID REFERENCES outlets(id) ON DELETE SET NULL;
+
+CREATE INDEX IF NOT EXISTS idx_purchase_orders_outlet_id
+ON purchase_orders(outlet_id);
+
+WITH movement_outlets AS (
+    SELECT
+        poi.purchase_order_id,
+        MIN(im.outlet_id) AS outlet_id
+    FROM inventory_movements im
+    JOIN purchase_order_items poi ON im.purchase_order_item_id = poi.id
+    WHERE im.outlet_id IS NOT NULL
+      AND im.purchase_order_item_id IS NOT NULL
+    GROUP BY poi.purchase_order_id
+    HAVING COUNT(DISTINCT im.outlet_id) = 1
+)
+UPDATE purchase_orders po
+SET outlet_id = movement_outlets.outlet_id
+FROM movement_outlets
+WHERE po.id = movement_outlets.purchase_order_id
+  AND po.outlet_id IS NULL;
+
+WITH candidate_item_outlets AS (
+    SELECT
+        poi.purchase_order_id,
+        i.outlet_id
+    FROM purchase_order_items poi
+    JOIN ingredients i ON poi.ingredient_id = i.id
+    WHERE i.outlet_id IS NOT NULL
+
+    UNION ALL
+
+    SELECT
+        poi.purchase_order_id,
+        u.outlet_id
+    FROM purchase_order_items poi
+    JOIN units u ON poi.unit_id = u.id
+    WHERE u.outlet_id IS NOT NULL
+), item_outlets AS (
+    SELECT
+        purchase_order_id,
+        MIN(outlet_id) AS outlet_id
+    FROM candidate_item_outlets
+    GROUP BY purchase_order_id
+    HAVING COUNT(DISTINCT outlet_id) = 1
+)
+UPDATE purchase_orders po
+SET outlet_id = item_outlets.outlet_id
+FROM item_outlets
+WHERE po.id = item_outlets.purchase_order_id
+  AND po.outlet_id IS NULL;
+
+WITH single_outlet_organizations AS (
+    SELECT
+        organization_id,
+        MIN(id) AS outlet_id
+    FROM outlets
+    GROUP BY organization_id
+    HAVING COUNT(*) = 1
+)
+UPDATE purchase_orders po
+SET outlet_id = single_outlet_organizations.outlet_id
+FROM single_outlet_organizations
+WHERE po.organization_id = single_outlet_organizations.organization_id
+  AND po.outlet_id IS NULL;