I'm trying to initiate an Apple payment request and I successfully get a payment session and get a 200 status code when I send the payment message it self. But on my iPhone I always receive "Invalid Payment Request". even though everything else seems to work fine. Any ideas what the issue could be?
Apple Pay - Invalid Payment Request
I'm talking about the Business Message integration https://register.apple.com/resources/messages/msp-api-tutorial/applepay#integrating-apple-pay