Hello, I'm currently experiencing issues with IAP subscription setup.
The following error appears:
"Billing Problem, There was a problem with your subscription renewal. To resolve, turn on Allow Purchases & Renewals, or leave off to test failed in-app purchase attempts and subscription renewals."
I'm testing with a sandbox account, and automatic subscription renewal is turned on in the sandbox settings.
A notification screen appears at the OS level, and consequently, a DID_FAIL_TO_RENEW error occurs on our payment server.
I cannot determine the cause at all, so I would appreciate your assistance in checking this issue.
There was an App Store-Sandbox outage that is now resolved. Please try again and let us know if the issue still persists.