TestFlight App Unavailable and External Beta Review Submission Error – No Response from Apple Support

Hello Apple Developer Community,

I am experiencing two persistent TestFlight issues with my iOS app, Kıblecim: Namaz Vakitleri (App Store ID: 6817453868, Bundle ID: com.kiblecim.namazvakitleri).

Issue 1 — TestFlight app unavailable

When attempting to install my app through TestFlight on an iPhone 11, I receive:

"The requested app is not available or doesn't exist."

This has occurred with Builds 33, 36, and 39. Other TestFlight apps have also failed on my device, while regular App Store downloads work normally.

I have checked the Apple Account settings and even factory-reset the iPhone, created a completely new Apple Account, and reinstalled TestFlight. However, I cannot yet verify whether the new account resolves installation because the external build submission is blocked.

Issue 2 — External Beta App Review submission fails

My latest build, version 1.5 (39), was successfully uploaded and validated in App Store Connect.

When I try to add it to my external testing group and select "Submit for Review", App Store Connect repeatedly displays:

"There was an error processing your request. Please try again later."

The external group has one tester but still shows zero builds.

I have already checked the Test Information, privacy policy URL, review contact details, review notes, and sign-in settings.

Issue 3 — No substantive response from Apple Developer Support

I opened support case 103009623313 in October 2026 and sent multiple follow-ups, including November 6 and November 9. As of November 10, I have not received a substantive response or a resolution.

Questions:

  1. What could prevent a validated build from being submitted for external Beta App Review?
  2. Could these errors indicate an App Store Connect backend or account-level problem?
  3. Are there any additional diagnostics or escalation options available?

Any guidance from Apple engineers or developers who have encountered similar issues would be greatly appreciated.

Thank you.