Xero Purchasing

Manages the complete purchasing and expense management lifecycle in Xero Accounting. Provides full CRUD operations for purchase orders, expense claim receipts, and supplier advance payments with PDF generation and audit trails.

Key Features:

1. Purchase order creation, tracking, and supplier management
2. Expense claim receipt processing for employee reimbursement
3. Supplier prepayment management and allocation
4. Purchase order PDF generation for supplier distribution
5. Delivery address and recipient management
6. Audit trail and history tracking for compliance
7. Status tracking (Draft, Submitted, Authorised, Billed)

Includes:

1. GET /connections - Retrieve available tenants
2. DELETE /connections/{connectionId} - Disconnect tenant
3. GET /api.xro/2.0/PurchaseOrders - List purchase orders
4. PUT /api.xro/2.0/PurchaseOrders - Create purchase orders
5. GET /api.xro/2.0/PurchaseOrders/{PurchaseOrderID} - Get PO details
6. POST /api.xro/2.0/PurchaseOrders/{PurchaseOrderID} - Update PO
7. GET /api.xro/2.0/Receipts - List expense receipts
8. PUT /api.xro/2.0/Receipts - Create receipts
9. GET /api.xro/2.0/Receipts/{ReceiptID} - Get receipt details
10. GET /api.xro/2.0/Prepayments - List supplier prepayments
11. PUT /api.xro/2.0/Prepayments/{PrepaymentID}/Allocations - Allocate prepayment