UnionPay International - ExpressPay

• Overview
• Countries & currencies
• Integration
• Process flows
• Testing
• Additional information
• Consumer experience
• Reporting
• FAQ

Process flows

In order to integrate ExpressPay, please refer to our API Reference.

1. The consumer places an order and chooses UnionPay to make the payment.
2. The consumer provides their card number and proceeds with the payment.
3. We request authorization from UnionPay.
4. UnionPay requests authorization from the issuing bank.
5. The issuing bank responds to UnionPay.
6. UnionPay responds to us.
7. We update the order status so you can release the order.
8. We request the settlement.
9. UnionPay requests the settlement from the issuing bank.
10. The issuing bank settles the funds.
11. Funds are reported to us.
12. We remit funds to you and provide the report.