Sign in with Apple is failing for every user, on every device, for our live App Store app. Each attempt fails inside Apple's native sign-in sheet with the error "Sign-Up Not Completed" — before any of our code runs (no ASAuthorizationController delegate callback is reached).
Environment / identifiers:
Bundle ID: online.framenet.app
Team ID: 5F2256QJNT
App Store app: FrameNet, App ID 6799345029 (approved and live as of Aug 24, 2026)
Timeline:
Last worked: Aug 8, 2026
Failing on every attempt since: Aug 14, 2026, across builds 12–16
Our sign-in code is unchanged between the working and failing period
Already verified / attempted on our side:
Sign in with Apple entitlement is present in the signed builds (confirmed via codesign entitlement dump)
Capability is enabled on the App ID in Certificates, Identifiers & Profiles
Provisioning profile is valid and includes the capability
Removed and re-added the Sign in with Apple capability and regenerated the provisioning profile on Aug 17 — no change
Google Sign-In in the same app works normally, so networking and the rest of the auth stack are fine
Reproduced on multiple physical devices and Apple IDs
Because the failure occurs inside Apple's own sign-in sheet before our code executes, this appears to be a server-side state problem with Sign in with Apple for our App ID, and nothing we change client-side has any effect. We were forced to ship v1.0 with Sign in with Apple disabled.
A Developer Support case is already open for this: case 20000140460775. A screen recording and full environment details have been provided in that case.
Has anyone from Apple seen this "Sign-Up Not Completed" state, and can engineering inspect/repair the server-side Sign in with Apple configuration for this App ID?
Topic:
App & System Services
SubTopic:
General
Tags:
Sign in with Apple
Authentication Services
Signing Certificates
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