diff --git a/internal/modules/inventory/product-warehouses/dto/product_warehouse.dto.go b/internal/modules/inventory/product-warehouses/dto/product_warehouse.dto.go
index 2260e834..fdebb519 100644
--- a/internal/modules/inventory/product-warehouses/dto/product_warehouse.dto.go
+++ b/internal/modules/inventory/product-warehouses/dto/product_warehouse.dto.go
@@ -10,10 +10,10 @@ import (
 // === DTO Structs ===
 
 type ProductWarehouseBaseDTO struct {
-	Id          uint `json:"id"`
-	ProductId   uint `json:"product_id"`
-	WarehouseId uint `json:"warehouse_id"`
-	Quantity    float64  `json:"quantity"`
+	Id          uint    `json:"id"`
+	ProductId   uint    `json:"product_id"`
+	WarehouseId uint    `json:"warehouse_id"`
+	Quantity    float64 `json:"quantity"`
 }
 
 type ProductWarehouseListDTO struct {
@@ -31,9 +31,10 @@ type ProductWarehouseDetailDTO struct {
 
 // Nested DTOs for relations
 type ProductBaseDTO struct {
-	Id   uint   `json:"id"`
-	Name string `json:"name"`
-	Sku  string `json:"sku"`
+	Id    uint     `json:"id"`
+	Name  string   `json:"name"`
+	Sku   string   `json:"sku"`
+	Flags []string `json:"flags"`
 }
 
 type WarehouseBaseDTO struct {
@@ -68,6 +69,12 @@ func ToProductWarehouseListDTO(e entity.ProductWarehouse) ProductWarehouseListDT
 		if e.Product.Sku != nil {
 			product.Sku = *e.Product.Sku
 		}
+		// Map flags from Product relation
+		if len(e.Product.Flags) > 0 {
+			for _, f := range e.Product.Flags {
+				product.Flags = append(product.Flags, f.Name)
+			}
+		}
 		dto.Product = &product
 	}
 
diff --git a/internal/modules/inventory/product-warehouses/services/product_warehouse.service.go b/internal/modules/inventory/product-warehouses/services/product_warehouse.service.go
index 7a1ff00e..9afe5707 100644
--- a/internal/modules/inventory/product-warehouses/services/product_warehouse.service.go
+++ b/internal/modules/inventory/product-warehouses/services/product_warehouse.service.go
@@ -34,7 +34,7 @@ func NewProductWarehouseService(repo repository.ProductWarehouseRepository, vali
 }
 
 func (s productWarehouseService) withRelations(db *gorm.DB) *gorm.DB {
-	return db.Preload("Product").Preload("Warehouse").Preload("CreatedUser")
+	return db.Preload("Product.Flags").Preload("Product").Preload("Warehouse").Preload("CreatedUser")
 }
 
 func (s productWarehouseService) GetAll(c *fiber.Ctx, params *validation.Query) ([]entity.ProductWarehouse, int64, error) {