Hi folks, I had a similar issue I was able to replicate without fail: Public beta submission fails with: "Beta app contract is missing" POST /iris/v1/betaAppReviewSubmissions returns 422 Error: TF_BETA_APP_REVIEW_RESPONSE Internal TestFlight installs fail with: "The requested app is not available or doesn't exist" Adding apps to beta review also fails I was unable to: Add builds to public testing groups Submit builds for TestFlight review Reliably update TestFlight metadata ("What to Test", etc.) The fix: filed via Feedback Assistant (not Developer Support email). Included a HAR capture of the failing request and response headers, also provided all affected App IDs (even though this was account-wide). Got traction within a couple days after filing, much faster than waiting on Developer Support. Note: In my case this affected every app on the account. From what I’ve seen, this may be triggered by changes to tester groups (adding/removing testers), but this is not confirmed. Seems to be a backend contract/entitlement desync Apple-side. Hope this helps someone.