Hi all, I tried to implement Apple Login in my Expo App for iOS (as I also want to use Google login and Apple makes Apple login mandatory in this case). But I always get an error when I try to sign in. Problem Sign in with Apple never completes. The system sheet appears, the user taps "Continue", then the sheet shows "Sign up not completed" and the API returns: ASAuthorizationError with message "The user canceled the authorization attempt" (no error code is provided; the error object is otherwise empty) This happens on every attempt, with no user cancellation involved. What I have already verified App ID capability: APPLE_ID_AUTH is enabled with setting APPLE_ID_AUTH_APP_CONSENT = PRIMARY_APP_CONSENT (verified via App Store Connect API and visible as enabled in the Developer Portal UI). Provisioning profile: freshly generated AFTER enabling the capability. Decoded profile contains: com.apple.developer.applesigninDefault Signed binary: I downloaded the built IPA and inspected it. codesign -d --entitlements shows: com.apple.developer.applesignin = ["Default"] The embedded.mobileprovision inside the IPA is the newly generated one. No app extensions: the IPA contains no PlugIns directory, so there is no bundled extension missing the entitlement. Not account-specific: reproduced with two different Apple IDs (both with two-factor authentication enabled). Not bundle-ID or distribution-specific: reproduced with both com.enplace.app.dev (Ad Hoc) and com.enplace.recipes (App Store build distributed via TestFlight). No stale authorization: Settings > Apple Account > Sign in with Apple lists no entry for this app. Agreements: "Free Apps" agreement is active. Expected signInAsync() returns a credential with an identityToken. Actual Promise rejects with "The user canceled the authorization attempt" without any user cancellation, on every attempt, on all tested configurations. Environment Device: iPhone SE (Touch ID), iOS 26.5.2 Framework: React Native / Expo SDK 56 with expo-apple-authentication (wraps ASAuthorizationController; no custom native code involved) The app bundles no app extensions Capability was enabled on 2026-07-28; still failing on 2026-07-29 Has anyone found the actual cause for this? Several older threads describe the same symptom, but none of them ends with a resolution.