Why can't I add a test Visa or Mastercard to Apple Pay on my iPhone for sandbox testing?

Question

I followed all the guidelines for setting up Apple Pay on my iPhone for testing:

• Created a new Apple ID for the sandbox account.
• Added this Apple ID to the Test Accounts (in the Users and Access menu in Apple Developer).
• Added the Apple ID to the Sandbox account on my iPhone.
• Ensured that the Apple Store, Apple ID (Sandbox account), and region on the device are all set to Singapore.
• Restarted my device.
• Opened the Wallet app and attempted to add test cards using the website: https://developer.apple.com/apple-pay/sandbox-testing/

I also tried to add a card through Settings -> Wallet & Apple Pay.

However, the result is always "Invalid Card." I have spent a lot of time but have not found any solutions. Does anyone have any ideas or solutions for this issue so I can add a test card?

Answer 1

There is no guarantee that are going to work on the Issuer side. Check it out below. So this can work with Visa/Mastercard, them need to whitelist your card.

"Visa/Mastercard does not guarantee that the push provisioning will always work in Apple's test card. Sandbox testing is mainly used to test the encryption payload and authorization code on TPC SDK."

https://developer.dbp.thalescloud.io/docs/tsh-token-push-and-control/0f1dbd18cec55-sandbox-testing-configuration