The Payment Callback feature enables Payment Service Providers (Payment Apps) to update Shoplazza with the payment status of an order. This can be achieved through:
- Synchronous Calls (Complete Payment): Immediately update the payment status upon completion.
- Asynchronous Calls (Notify Payment and refund): This API allows third-party payment providers to asynchronously notify Shoplazza of the final result for both payments and refunds.
If Shoplazza does not receive a successful response (200 OK), the request should be retried.