Sign in with Apple fails with ASAuthorizationError.canceled (1001) / "Sign Up Not Completed" — server-side, all config verified

Question

Created Jun ’26

Replies 6

Boosts 0

Participants 5

Our app's Sign in with Apple never completes. Apple's create-account sheet renders fully (name + share/hide-my-email step), then the final server submit fails and shows the "Sign Up Not Completed" sheet. The authorization callback returns ASAuthorizationError.canceled (1001) with no userInfo — even though the user did not cancel. Reproduced on multiple physical devices and multiple Apple IDs (all with 2FA), on iOS 26.5.1, since our first build.

Team ID: 24XS837728
App ID: C54N9Q226H (bundle com.sucsessmaperrs.careerAssessmentApp)

Verified on our side:

com.apple.developer.applesignin = [Default] present in the distribution build (codesign -d --entitlements); embedded profile is the

explicit App Store profile for the App ID (not wildcard).

App ID has Sign in with Apple enabled as a primary App ID; capability deleted + recreated via the App Store Connect API today, no

change.

Firebase consumes the identity token; the failure is in Apple's UI before our code runs.
App Store Connect agreements are clean.

Key isolating fact: the same Apple ID on the same device completes a first-time Sign in with Apple sign-up in other third-party apps — only ours fails. So the cause appears scoped to our App ID / team on Apple's side, not the device, the Apple ID, 2FA, or our client code.

This matches the widespread server-side "Sign Up Not Completed" failure in thread 675756 — same signature: multiple devices/Apple IDs, no console error, the failure delegate surfacing only as "cancel", newly created apps affected, even Apple's own sample app failing — which Apple ultimately resolved server-side (with a recurrence reported June 2025). Note this is the native ASAuthorizationController flow, not the REST/web flow, so the query-parameter percent-encoding fix from thread 122458 does not apply here.

Could an Apple engineer check the server-side Sign in with Apple / account-association state for App ID C54N9Q226H (Team 24XS837728)? Happy to provide a screen recording or sysdiagnose.

Answered by DTS Engineer in 894260022

Hi @Samadhaan,

For the "Sign Up Not Completed" error, please submit a bug report via Feedback Assistant:

Gathering required information for troubleshooting Sign in with Apple authorization and token requests

https://developer.apple.com/forums/thread/801173

Remember to include your Team ID, Client ID/Services ID, affected user ID/email, and sysdiagnose logs. Once submitted, please reply with your Feedback ID.

Cheers,

Paris X Pinkney |  WWDR | DTS Engineer

Answer 1

DTS Engineer OP

Apple

Jun ’26

Recommended

Hi @Samadhaan,

For the "Sign Up Not Completed" error, please submit a bug report via Feedback Assistant:

Gathering required information for troubleshooting Sign in with Apple authorization and token requests

https://developer.apple.com/forums/thread/801173

Remember to include your Team ID, Client ID/Services ID, affected user ID/email, and sysdiagnose logs. Once submitted, please reply with your Feedback ID.

Cheers,

Paris X Pinkney |  WWDR | DTS Engineer

Answer 2

Samadhaan OP

Jun ’26

Accepted Answer

Hi Paris, thanks. Submitted via Feedback Assistant: FB23347808 — it includes the Bundle ID ▎ (com.sucsessmaperrs.careerAssessmentApp), Team ID (24XS837728), the affected Apple ID, the reproduction timestamp, and a ▎ sysdiagnose captured on iPhone 17 / iOS 26.5.1 with the Accounts/AuthKit profile installed. Note the flow fails with ▎ ASAuthorizationError.canceled (1001) before any identity token is issued, so none is included. This was also just cited ▎ by App Review as a Guideline 2.1 rejection (Submission ID 39e39bfa-f68d-4c6e-b9cf-6ae2093cf76d), so it's now blocking our ▎ release. Happy to provide a screen recording or anything else needed. — Samadhaan

Answer 3

phatvh OP

1w

We are experiencing the identical issue and have filed feedback as requested: FB23869872

Team ID: DMB7A87LM9 — Bundle ID: io.ausynclab.subio (App ID registered 2026-06-30, organization team enrolled late June 2026).

Native Sign in with Apple account creation always fails with "Sign-Up Not Completed" / ASAuthorizationError 1001 with empty userInfo, for every Apple ID on every device — including Apple App Review's own devices; our app has been rejected 6+ times under Guideline 2.1(a) solely because of this.

The feedback includes a sysdiagnose captured with the Accounts/AuthKit logging profile installed, taken immediately after reproducing the failure, plus the affected user's Apple ID and timestamp.

Everything client-side has been verified and exhausted: capability enabled as primary (verified via ASC API), entitlement confirmed inside the signed .ipa via codesign, capability delete + re-create, fresh provisioning profile + completely new build afterwards — no change.

Related reports from other teams with June-July 2026-registered App IDs: FB23726069, FB23716661, FB23826495, FB23839261 (threads 837835, 837986, 749537). Our thread: 837263.

Answer 4

SeraBabywiseDev OP

5d

We are experiencing the same native “Sign Up Not Completed” failure before any credential is returned. It reproduces with two unrelated Apple Accounts on two physical iPhones. Bundle ID: com.hauville.babywise Team ID: 9ZVUZKMNPT Feedback Assistant report with Accounts/AuthKit sysdiagnose, screen recording, and reproduction timestamp: FB24011988 Could Apple please check the server-side Sign in with Apple registration/account-association state for this App ID and team?

Answer 5

learnbybits OP

4d

Same issue here. Team ID GW7XA5CX69, bundle com.learnbybits.app (App ID registered July 2026). Entitlement, App Store profile, APPLE_ID_AUTH with primary-app consent, and agreements all verified; capability off/on toggle did nothing. Apple sample code signed with this App ID reproduces it. akd logs show AKSQLError -6003 "No applications were found with the provided Client ID" followed by SRP "M2 missing (bad password)". Also reproduced by App Review (2.1(a) rejection). Filed as FB24029082 with the full log archive from the repro attached.

Answer 6

learnbybits OP

17h

Following up on my earlier reply: this is now resolved for Team ID GW7XA5CX69 / com.learnbybits.app with no client-side changes — Apple's server-side fix landed. Verified end-to-end July 31, 2026, including Hide My Email. FB24029082 updated and closed. If you're still seeing this, retest — a DTS engineer in thread 837986 asked affected teams to confirm resolution.