Sign in with Apple fails for our Team ID with "Sign Up Not Completed" Team ID: 3CKFWN9ZBM Bundle ID: app.kardea App: Kardea (App Store ID 6793991476), live on the App Store since September 7, 2026 Symptom: the native Sign in with Apple sheet appears, Face ID succeeds, then the sheet shows "Sign Up Not Completed". No credential is returned to the app, and no request ever reaches our backend. Not a single Apple-created account exists in our database since the App ID was created in July 2026. This happens for every user and every build, on both TestFlight and App Store builds. Configuration verified on our side: App ID app.kardea has Sign in with Apple enabled as a primary App ID. The signed binary and its App Store provisioning profile both carry the entitlement com.apple.developer.applesignin = ["Default"]. The app uses ASAuthorizationAppleIDProvider with requestedScopes fullName and email. Our backend verifies the identity token against https://appleid.apple.com/auth/keys. This matches the server-side registration issue described in Developer Forums thread 837986, where the reported signature is "No applications were found with the provided Client ID" and the app receives ASAuthorizationError.canceled with an empty userInfo. Several teams listed in that thread were repaired server-side with no client changes. Please check whether our Team ID 3CKFWN9ZBM and App ID app.kardea are correctly registered in the Sign in with Apple authorization database.