TestFlight is Unavailable

I use Apple Business Manager to install apps on my office iPads and to track them. I am a beta tester for a company that pushes new versions of their software through TestFlight. These iPads are logged into managed apple accounts [apple IDs] under my Apple Business Manager account. When I attempt to open TestFlight, I receive a message "TestFlight is currently unavailable, try again later." If I logout and sign in an iPad under a consumer Apple Account, TestFlight works properly. I however, want to use these iPads under my apple business account.

Sorry for the delay, are you still having that issue with TestFlight? Is now currently available?

Albert Pascual
  Worldwide Developer Relations.

Unfortunately yes. I am hearing that it is related to managed [federated] Apple ID accounts. Even though it is my domain and I control these accounts, it is blocked on the apple side. Developers say it is not a restriction on their end. Unfortunately the only workaround is to logout of the managed Apple ID account, login to a consumer Apple ID account, download the software I need through TestFlight, then logout and log back in with the managed Apple ID which is quite a bit of work.

TestFlight is Unavailable
 
 
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