A payment logo or shipping option on a mockup does not prove the workflow works. Integration planning should describe the data that moves, the event that triggers it and how staff recover when it fails.
Trace an order end to end
Document cart total, delivery charge, taxes where applicable, payment authorization, order creation, stock update, fulfilment request and customer notification. Name the system of record for each amount and status. If the payment succeeds but an order is missing, who investigates and how is a duplicate avoided?
Test the exception paths
Run declined payment, abandoned payment, an address outside the delivery area, a product with special handling and a failed carrier handoff. Verify what the buyer sees and what staff see. The providers, supported methods and terms should be confirmed for the actual UAE store; this checklist does not assume a specific gateway or carrier.
Handover operating control
Record who owns credentials, webhook configuration, support contacts, logs and reconciliation. Train the team to identify unpaid orders, retry a fulfilment handoff and issue a refund according to the provider’s process. A successful integration is one the owner can operate after launch.
Worked decision example
Illustrative integration test: a paid order is accepted by the gateway, but the shipping service times out. The order should remain visible to staff with a clear fulfilment state and a safe retry path, while the customer receives accurate confirmation. A second payment callback should not create a duplicate order. The checklist should name who owns the gateway log, shipping queue and customer response, and how the team reconciles the day’s transactions.
Practical review checklist
- Does one paid order create one correct order record?
- Can a failed payment be retried safely?
- Is the delivery promise consistent across checkout and confirmation?
Where to go next
ecommerce website service · store launch checklist · Fyonka website case