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+# Phase 7: Service & DTO Update Checklist
+
+## Overview
+All entity schemas have been updated. This checklist covers required changes to compile the application.
+
+---
+
+## 1. Store → StoreLocation Updates
+
+### Repositories
+- [x] `StoreRepository.java` - Updated to use StoreLocation
+
+### Services
+- [ ] `StoreService.java`
+  - [ ] Change all `Store` → `StoreLocation`
+  - [ ] Update field references: `store.getStoreLocation()` → `store.getAddress()`
+  - [ ] Update DTOs to match StoreLocation fields
+
+- [ ] `SaleService.java`
+  - [ ] Change `Store store` → `StoreLocation store`
+  - [ ] Update `.getStore()` → returns StoreLocation
+  - [ ] Update DTO mappings
+
+- [ ] `InventoryService.java`
+  - [ ] Remove all Store/storeId references (inventory is now global)
+  - [ ] Update queries to remove store filtering
+
+- [ ] `AnalyticsService.java`
+  - [ ] Update Store references to StoreLocation
+
+### DTOs
+- [ ] `dto/store/StoreRequest.java` → rename/update to StoreLocationRequest
+  - [ ] Update fields: add `address`, `phone`, `email`
+  - [ ] Remove `storeLocation` field
+
+- [ ] `dto/store/StoreResponse.java` → rename/update to StoreLocationResponse
+  - [ ] Change all field names to match StoreLocation entity
+
+- [ ] `dto/sale/SaleResponse.java`
+  - [ ] Update Store references to StoreLocation
+
+- [ ] `dto/inventory/InventoryResponse.java`
+  - [ ] Remove `storeId` and `storeName` fields
+
+### Controllers
+- [ ] `StoreController.java`
+  - [ ] Update all Store references to StoreLocation
+
+---
+
+## 2. User → Employee Updates (Sales)
+
+### Services
+- [ ] `SaleService.java`
+  - [ ] Change `User employee` → `Employee employee`
+  - [ ] Update repository/entity references
+  - [ ] Map employee fields correctly (employeeId, firstName, lastName)
+
+### DTOs
+- [ ] `dto/sale/SaleRequest.java`
+  - [ ] Change `userId` → `employeeId`
+
+- [ ] `dto/sale/SaleResponse.java`
+  - [ ] Add employee details (firstName, lastName, not username/fullName)
+
+---
+
+## 3. ID Field Name Changes
+
+### All Services - Update getter/setter calls:
+
+- [ ] `PetService.java`
+  - [ ] `.getId()` → `.getPetId()`
+  - [ ] `.setId()` → `.setPetId()`
+
+- [ ] `CustomerService.java`
+  - [ ] `.getId()` → `.getCustomerId()`
+  - [ ] `.setId()` → `.setCustomerId()`
+
+- [ ] `ProductService.java`
+  - [ ] `.getId()` → `.getProdId()`
+  - [ ] `.setId()` → `.setProdId()`
+
+- [ ] `SupplierService.java`
+  - [ ] `.getId()` → `.getSupId()`
+  - [ ] `.setId()` → `.setSupId()`
+
+- [ ] `CategoryService.java`
+  - [ ] `.getId()` → `.getCategoryId()`
+  - [ ] `.setId()` → `.setCategoryId()`
+
+- [ ] `ServiceService.java` (service for Service entity)
+  - [ ] `.getId()` → `.getServiceId()`
+  - [ ] `.setId()` → `.setServiceId()`
+
+- [ ] `AdoptionService.java`
+  - [ ] `.getId()` → `.getAdoptionId()`
+  - [ ] `.setId()` → `.setAdoptionId()`
+
+- [ ] `AppointmentService.java`
+  - [ ] `.getId()` → `.getAppointmentId()`
+  - [ ] `.setId()` → `.setAppointmentId()`
+
+- [ ] `SaleService.java`
+  - [ ] `.getId()` → `.getSaleId()`
+  - [ ] `.setId()` → `.setSaleId()`
+
+- [ ] `SaleItemRepository.java` / `SaleService.java`
+  - [ ] `.getId()` → `.getSaleItemId()`
+
+- [ ] `InventoryService.java`
+  - [ ] `.getId()` → `.getInventoryId()`
+
+- [ ] `PurchaseOrderService.java`
+  - [ ] `.getId()` → `.getPurchaseOrderId()`
+  - [ ] `.setId()` → `.setPurchaseOrderId()`
+
+### All DTOs - Update field names:
+- [ ] All Response DTOs: change `id` → specific ID field (`petId`, `customerId`, etc.)
+- [ ] All Request DTOs: update ID references accordingly
+
+---
+
+## 4. Enum → String Conversions
+
+### Services
+
+- [ ] `PetService.java`
+  - [ ] Remove `Pet.PetStatus` enum references
+  - [ ] Use `String` for status
+  - [ ] Update validation to check string values ("Available", "Adopted", etc.)
+
+- [ ] `AppointmentService.java`
+  - [ ] Remove `Appointment.AppointmentStatus` enum
+  - [ ] Use `String` for appointmentStatus
+  - [ ] Update validation to check string values ("Booked", "Completed", "Cancelled")
+
+- [ ] `PurchaseOrderService.java`
+  - [ ] Remove `PurchaseOrder.OrderStatus` enum
+  - [ ] Use `String` for status
+  - [ ] Update validation to check string values ("Pending", "Delivered", etc.)
+
+### DTOs
+
+- [ ] `dto/pet/PetRequest.java` & `PetResponse.java`
+  - [ ] Change `PetStatus status` → `String petStatus`
+
+- [ ] `dto/appointment/AppointmentRequest.java` & `AppointmentResponse.java`
+  - [ ] Change `AppointmentStatus status` → `String appointmentStatus`
+
+- [ ] `dto/purchaseorder/PurchaseOrderRequest.java` & `PurchaseOrderResponse.java`
+  - [ ] Change `OrderStatus status` → `String status`
+
+---
+
+## 5. Removed Fields - Delete References
+
+### CustomerService.java & DTOs
+- [ ] Remove `customerAddress` field
+- [ ] Update `Customer` entity mappings
+
+### SupplierService.java & DTOs
+- [ ] Remove `active` field
+- [ ] Remove `supplierAddress` field
+- [ ] Split contact: `supplierContact` → `supContactFirstName` + `supContactLastName`
+
+### ServiceService.java & DTOs
+- [ ] Remove `active` field
+
+### ProductService.java & DTOs
+- [ ] Remove `active` field
+
+### SaleService.java & DTOs
+- [ ] Remove `customer` field (sales no longer track customer)
+- [ ] Remove `subtotal` field
+- [ ] Remove `tax` field
+- [ ] Remove `notes` field
+- [ ] Change `total` → `totalAmount`
+
+### SaleItemService/DTOs
+- [ ] Remove `subtotal` field from SaleItem
+
+### InventoryService.java & DTOs
+- [ ] Remove `reorderLevel` field
+- [ ] Remove `lastRestocked` field
+
+### PurchaseOrderService.java & DTOs
+- [ ] Remove `expectedDelivery` field
+- [ ] Remove `totalAmount` field
+- [ ] Remove `notes` field
+- [ ] Remove `items` list (PurchaseOrderItem not in desktop schema)
+
+### AdoptionService.java & DTOs
+- [ ] Remove `adoptionFee` field
+- [ ] Remove `notes` field
+- [ ] Add `adoptionStatus` field
+
+---
+
+## 6. Renamed Fields (snake_case → camelCase)
+
+### Customer
+- [ ] `customer_name` → split to `firstName` + `lastName`
+- [ ] `customer_email` → `email`
+- [ ] `customer_phone` → `phone`
+
+### Pet
+- [ ] `pet_name` → `petName`
+- [ ] `pet_species` → `petSpecies`
+- [ ] `pet_breed` → `petBreed`
+- [ ] `pet_age` → `petAge`
+- [ ] `pet_status` → `petStatus`
+- [ ] `pet_price` → `petPrice`
+
+### Product
+- [ ] `product_name` → `prodName`
+- [ ] `product_description` → `prodDesc`
+- [ ] `product_price` → `prodPrice`
+- [ ] `category_id` → `categoryId` (FK)
+
+### Supplier
+- [ ] `supplier_name` → `supCompany`
+- [ ] `supplier_contact` → `supContactFirstName` + `supContactLastName`
+- [ ] `supplier_email` → `supEmail`
+- [ ] `supplier_phone` → `supPhone`
+
+### Category
+- [ ] `category_name` → `categoryName`
+- [ ] `category_description` → `categoryType`
+
+### Service
+- [ ] `service_name` → `serviceName`
+- [ ] `service_description` → `serviceDesc`
+- [ ] `service_price` → `servicePrice`
+- [ ] `service_duration_minutes` → `serviceDuration`
+
+### Sale
+- [ ] `sale_date` → `saleDate`
+- [ ] `employee_id` → `employeeId` (FK)
+- [ ] `store_id` → `storeId` (FK)
+- [ ] `total` → `totalAmount`
+- [ ] `payment_method` → `paymentMethod`
+- [ ] Add `isRefund` field
+- [ ] Add `originalSaleId` field (FK to sale)
+
+### SaleItem
+- [ ] `sale_id` → `saleId` (FK)
+- [ ] `product_id` → `prodId` (FK)
+- [ ] `unit_price` → `unitPrice`
+
+### Appointment
+- [ ] `appointment_date` → `appointmentDate`
+- [ ] `appointment_time` → `appointmentTime`
+- [ ] `status` → `appointmentStatus`
+- [ ] Join table: `appointment_pets` → `appointmentPet`
+
+### Adoption
+- [ ] `pet_id` → `petId` (FK)
+- [ ] `customer_id` → `customerId` (FK)
+- [ ] `adoption_date` → `adoptionDate`
+- [ ] Add `adoptionStatus`
+
+### Inventory
+- [ ] `product_id` → `prodId` (FK)
+
+### ProductSupplier
+- [ ] `product_id` → `prodId` (FK)
+- [ ] `supplier_id` → `supId` (FK)
+- [ ] `cost_price` → `cost`
+
+### PurchaseOrder
+- [ ] `supplier_id` → `supId` (FK)
+- [ ] `order_date` → `orderDate`
+
+---
+
+## 7. New Entities - Add Services/Controllers (Optional)
+
+These entities exist but may not need full CRUD yet:
+
+- [ ] `EmployeeService.java` - basic CRUD for employees
+- [ ] `EmployeeController.java` - REST endpoints for employees
+- [ ] `ActivityLogService.java` - logging service
+- [ ] Employee/ActivityLog DTOs
+
+---
+
+## 8. DropdownController Updates
+
+- [ ] `DropdownController.java`
+  - [ ] Update queries for renamed columns
+  - [ ] Update Store → StoreLocation references
+  - [ ] Fix any broken field references
+
+---
+
+## 9. Validation & Error Messages
+
+After making all changes above:
+
+- [ ] Search codebase for any remaining references to removed fields
+- [ ] Update validation error messages to use new field names
+- [ ] Update API documentation (Swagger annotations)
+
+---
+
+## Quick Search Commands
+
+Find remaining issues:
+```bash
+# Find Store references (should be StoreLocation)
+grep -r "import.*\.Store;" src/main/java --include="*.java"
+
+# Find .getId() calls (should be specific IDs)
+grep -r "\.getId()" src/main/java/com/petshop/backend/service
+
+# Find enum references
+grep -r "PetStatus\|AppointmentStatus\|OrderStatus" src/main/java --include="*.java"
+
+# Find removed fields
+grep -r "customerAddress\|subtotal\|active" src/main/java --include="*.java"
+```
+
+---
+
+## Testing After Changes
+
+1. Verify compilation: `mvn clean compile`
+2. Run tests: `mvn test`
+3. Start services: `docker-compose up -d`
+4. Test endpoints with updated field names