The payment processing workflow is the process by which the payment information generated by Apple Pay, from the payment request and the information the user entered into the payment sheet, is transmitted to your payment gateway and the card's issuing bank in order to charge the card and make the payment's funds available in your acquiring bank.
The workflow starts when the payment sheet calls the paymentAuthorizationViewController:didAuthorizePayment:completion: delegate method, providing the user app with the general order information (such as the shipping and billing information) and a payment token containing the encrypted payment data.
This diagram depicts the actors, operations, and data that are part of the payment processing workflow:
These are the operations and data that are part of the workflow:
