Our app uses Sign in with Apple. In recent weeks (or months), we've noticed that emails sent to @privaterelay.appleid.com addresses are not being delivered.
We're not receiving any bouncebacks or error messages from the mail server, but the emails never reach the user's mailbox. We've also checked spam folders, with no luck.
We have verified that our Email Sources are configured correctly in Apple Developer settings.
Is there any way to debug or trace what might be happening with these messages?
Thanks in advance!
Prioritize user privacy and data security in your app. Discuss best practices for data handling, user consent, and security measures to protect user information.
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Due to business requirements, we need to transfer our app Gem Space for iOS from our current Apple Developer account to a new account.
We have a major concern regarding our users and the data associated with the app.
The user data is currently stored using an App Group with the identifier, for example: "group.com.app.sharedData"
According to some information we’ve found, it might be possible to complete the transfer by removing the App Group from the old account and creating a new one with the same identifier in the new account.
However, other sources suggest that App Group containers are owned by the specific team, and data stored in the container may become inaccessible after the app is transferred to a different team. This raises concerns about the possibility of users losing access to their data after updating the app from the new account.
Could you please clarify the expected behavior of App Groups in this case?
Do we need to perform any kind of data migration, and if so, could you please provide detailed guidance on how to do it safely and without impacting user data access?
Topic:
Privacy & Security
SubTopic:
General
I keep getting invalid_client,
here is a test login: https://www.bella-booking.ch/_get_incl/test_apple_login.cfm
Any help appreciated.
NOTE: Everey other error, like wrong reroute or wrong client id, a different error will be sent frpm apple, after I checked all and crosschecked with jwt.io, it keep getting invalid_client.
Any clue?
If the response is correct, the token should be displayed on the page.
Thx
Topic:
Privacy & Security
SubTopic:
Sign in with Apple
I have reached out to support and they simply tell me they are unable to help me, first redirecting me to generic Apple support, after following up they provided the explanation that they only handle administrative tasks and to post on the forums.
I am unable to change my App Tracking Transparency it provides no real error, though network traffic shows a 409 HTTP response from the backend API when trying to save. Here is a screenshot of the result when trying to save.
Does anyone have any suggestions on how to get this resolved? I've commented back to the reviewers and they simply provided help documentation. I have a technical issue and am unable to get anyone to help resolve this.
While I was submitting a new feedback today for an iPhone/iPad storage issue, I saw a new log called “iOS storage log”.
I could find no reference to this when I searched online. It made me wonder if it was new and if it contained personal data?
Most of us only have one device, with all our personal data. Therefore, I’d appreciate any input on what personal data these logs contain.
Hi Apple,
Currently we want to have enhancement for SMS OTP that we want to implement OTP Autofill, But after do some research we're stuck with option that the OTP only show in keyboard suggestion, is there any way for making OTP is automatically filled without user have to click the keyboard suggestion when receiving the SMS.
Thanks
Best Regards,
Admiral Sultano Harly.
Hi team,
We are experiencing an issue where some users in China are unable to create passkeys due to authentication errors.
This is the UI flows
The method we use to prompt users is passkey creation. Technically, this is implemented using Apple’s AuthenticationServices framework. We create an instance of ASAuthorizationController and conform to ASAuthorizationControllerDelegate to handle the results of the authentication attempt.
In failure cases, we receive ASAuthorizationError.failed (code 1004), along with some additional details describing the nature of the failure.
However, we are currently unable to determine the exact root cause of this issue or how to resolve it. At this point, we can only make assumptions based on the limited error information provided.
Our current hypothesis is that due to network restrictions, Apple may be unable to reach the .well-known endpoint where we host the associated domain file. Alternatively, even if the file is successfully loaded and cached to Apple’s CDN, the system in China may not be able to reach the CDN itself.
We would greatly appreciate it if you could help us understand what might be causing this problem and guide us on how we can resolve it effectively.
Thanks,
Hung
Topic:
Privacy & Security
SubTopic:
General
Tags:
Passkeys in iCloud Keychain
Authentication Services
Since release of 18.4. prepareInterfaceToProvideCredential .oneTimeCode case is not called and instead prepareInterfaceForUserChoosingTextToInsert() is called. That is the wrong delegate for this case and it causes confusion for the users.
Also, some TOTP fields are recognised however, the key icon button is not presented above the keyboard next to TOTP suggestions.
I've also tested 18.5 and it has the same issue.
provideOneTimeCodeWithoutUserInteraction works just fine.
Hello,
When using ASWebAuthenticationSession with an HTTPS callback URL (Universal Link), I receive the following error:
Authorization error: The operation couldn't be completed.
Application with identifier jp.xxxx.yyyy.dev is not associated with domain xxxx-example.go.link.
Using HTTPS callbacks requires Associated Domains using the webcredentials service type for xxxx-example.go.link.
I checked Apple’s official documentation but couldn’t find any clear statement that webcredentials is required when using HTTPS callbacks in ASWebAuthenticationSession.
What I’d like to confirm:
Is webcredentials officially required when using HTTPS as a callback URL with ASWebAuthenticationSession?
If so, is there any official documentation or technical note that states this requirement?
Environment
iOS 18.6.2
Xcode 16.4
Any clarification or official references would be greatly appreciated.
Thank you.
Topic:
Privacy & Security
SubTopic:
General
Tags:
iOS
Security
Authentication Services
Universal Links
We are using ASWebAuthenticationSession with apps on IoS to achieve SSO between apps. The IdP for authentication (OIDC) is an on-premise and trusted enterprise IdP based on one of the leading products in the market. Our problem is that the user is prompted for every login (and logouts) with a consent dialogue box:
“AppName” wants to use “internal domain-name” to Sign In
This allows the app and website to share information about you.
Cancel Continue”
I have read in various places that Apple has a concept of “Trusted domains” where you can put an “Apple certified” static web-page on the IdP. This page needs to contain specific metadata that iOS can verify. Once a user logs in successfully a few times, and if the IdP is verified as trusted, subsequent logins would not prompt the consent screen.
Question: I struggle to find Apple documentation on how to go about a process that ends with this “Apple certified web-page” on our IdP”. Anyone who has experience with this process, or who can point me in some direction to find related documentation?
Hi,
We're in the process of implementing Apple's App Integrity, but am getting stalled due to missing documents. Can anyone assist with this?
We've been following https://developer.apple.com/documentation/devicecheck/validating-apps-that-connect-to-your-server to make the necessary updates, but have come up short with where the document references decoding the Attestation Object. Can we get more information here and how the decoding process work?
Private relay emails are not being delivered, even though we've followed the guidance here,
https://developer.apple.com/help/account/capabilities/configure-private-email-relay-service/
iCloud, gmail etc. get delivered fine but as soon as its a private relay email address they get bounced as unauthorized sender.
We've tried a couple of domains but here I'll document test.x.domain.com
We have registered domains (test.x.domain.com), also the sender communication emails just to be safe (noreply at test.x.domain.com).
Passed SPF Authentication, DKIM Authentication.
ESP account shows as all green checks in mailgun.
Is there any way to track down what the actual rejection reason is?
{
"@timestamp": "2025-08-20T14:30:59.801Z",
"account": {
"id": "6425b45fb2fd1e28f4e0110a"
},
"delivery-status": {
"attempt-no": 1,
"bounce-type": "soft",
"certificate-verified": true,
"code": 550,
"enhanced-code": "5.1.1",
"first-delivery-attempt-seconds": 0.014,
"message": "5.1.1 <bounce+b53c9e.27949-6qj4xaisn4k=privaterelay.appleid.com@test.x.domain.com>: unauthorized sender",
"mx-host": "smtp3.privaterelay.appleid.com",
"session-seconds": 1.7229999999999999,
"tls": true
},
"domain": {
"name": "test.x.domain.com"
},
"envelope": {
"sender": "noreply@test.x.domain.com",
"sending-ip": "111.22.101.215",
"targets": "6qj4xaisn4k@privaterelay.appleid.com",
"transport": "smtp"
},
"event": "failed",
"flags": {
"is-authenticated": true,
"is-delayed-bounce": false,
"is-routed": false,
"is-system-test": false,
"is-test-mode": false
},
"id": "1gtVBeZYQ0yO1SzipVP99Q",
"log-level": "error",
"message": {
"headers": {
"from": "\"Test Mail\" <noreply@test.x.domain.com>",
"message-id": "20250820143058.7cac292cf03993f2@test.x.domain.com",
"subject": "Test Mail",
"to": "6qj4xaisn4k@privaterelay.appleid.com"
},
"size": 22854
},
"primary-dkim": "s1._domainkey.test.x.domain.com",
"reason": "generic",
"recipient": "6qj4xaisn4k@privaterelay.appleid.com",
"recipient-domain": "privaterelay.appleid.com",
"recipient-provider": "Apple",
"severity": "permanent",
"storage": {
"env": "production",
"key": "BAABAgFDX5nmZ7fqxxxxxxZNzEVxPmZ8_YQ",
"region": "europe-west1",
"url": [
"https://storage-europe-west1.api.mailgun.net/v3/domains/test.x.domain.com/messages/BAABAgFDXxxxxxxxxxxxxxNzEVxPmZ8_YQ"
]
},
"user-variables": {}
}
Hi everyone,
I’m currently facing an issue while trying to submit an update for my app to the App Store. The review process is blocking the update due to a "Privacy - Data Use and Sharing" warning, stating that our app requests "tracking purchase history for tracking purposes."
However, we have already removed this functionality and deleted the NSUserTrackingUsageDescription key from our latest build. Despite this, the warning persists, and we are unable to proceed with the update.
I have already contacted Apple Support, but in the meantime, I wanted to ask the community:
Has anyone else encountered this issue, and if so, how did you resolve it?
Is there a way to force a refresh of privacy-related settings in App Store Connect?
Are there any additional steps we need to take to completely remove this tracking flag from our app submission?
Any insights or guidance would be greatly appreciated! Thanks in advance for your help.
Hi community,
I'm wondering how can I request the permission of "System Audio Recording Only" under the Privacy & Security -> Screen & System Audio Recording via swift?
Did a bunch of search but didn't find good documentation on it.
Tried another approach here https://github.com/insidegui/AudioCap/blob/main/AudioCap/ProcessTap/AudioRecordingPermission.swift which doesn't work very reliably.
Topic:
Privacy & Security
SubTopic:
General
Tags:
AudioToolbox
AVAudioEngine
Core Audio
AVFoundation
Hi there,
I'm trying to use SFAuthorizationPluginView in order to show some fields in the login screen, have the user click the arrow, then continue to show more fields as a second step of authentication. How can I accomplish this?
Register multiple SecurityAgentPlugins each with their own mechanism and nib?
Some how get MacOS to call my SFAuthorizationPluginView::view() and return a new view?
Manually remove text boxes and put in new ones when button is pressed
I don't believe 1 works, for the second mechanism ended up calling the first mechanism's view's view()
Cheers,
-Ken
Hi everyone,
I'm currently working on a native macOS app (built with SwiftUI) and I'm trying to implement Password AutoFill functionality so users can use their saved credentials from Keychain or third-party password managers.
I've gone through Apple's documentation, WWDC sessions, and sample code, but I've noticed that the resources primarily focus on iOS and web implementations. There's very limited guidance specifically for macOS.
I've set up:
Associated Domains entitlement with the webcredentials: service
The apple-app-site-association file on my server
TextField with .textContentType(.username) and SecureField with .textContentType(.password)
However, I'm still not seeing the expected AutoFill behavior on macOS like I would on iOS.
Has anyone successfully implemented Password AutoFill on a native macOS app? Are there any macOS-specific considerations or additional steps required that differ from iOS?
Any guidance, sample code, or pointers to documentation I might have missed would be greatly appreciated.
Question detail
Dear Apple Developer Technical Support,
We are currently following the official Apple documentation “TN3159: Migrating Sign in with Apple users for an app transfer” to carry out a Sign in with Apple user migration after successfully transferring several apps to a new developer account.
Here is a summary of our situation:
Under the original Apple developer account, we had five apps using Sign in with Apple, grouped under a shared primary app using App Grouping.
Recently, we transferred three of these apps to our new Apple developer account via App Store Connect.
After the transfer, these three apps are no longer associated with the original primary App ID. We reconfigured individual Services IDs for each app in the new account and enabled Sign in with Apple for each.
More than 24 hours have passed since the app transfer was completed.
Now we are attempting to follow the migration process to restore user access via the user.migration flow. Specifically, we are using the following script to request an Apple access token:
url = "https://appleid.apple.com/auth/token"
headers = {"Content-Type": "application/x-www-form-urlencoded"}
data = {
"grant_type": "client_credentials",
"scope": "user.migration",
"client_id": "com.game.friends.ios.xxxx", # New Primary ID in the new account
"client_secret": "<JWT signed with new p8 key>"
}
response = requests.post(url, headers=headers, data=data)
However, the API response consistently returns:
{
"error": "invalid_client"
}
We have verified that the following configurations are correct:
The client_secret is generated using the p8 key from the new account, signed with ES256 and correct key_id, team_id, and client_id.
The client_id corresponds to the Services ID created in the new account and properly associated with the migrated app.
The scope is set to user.migration.
The JWT payload contains correct iss, sub, and aud values as per Apple documentation.
The app has been fully transferred and reconfigured more than 24 hours ago.
Problem Summary & Request for Support:
According to Apple’s official documentation:
“After an app is transferred, Apple updates the Sign in with Apple configuration in the background. This can take up to 24 hours. During this time, attempts to authenticate users or validate tokens may fail.”
However, we are still consistently receiving invalid_client errors after the 24-hour waiting period. We suspect one of the following issues:
The transferred apps may still be partially associated with the original App Grouping or primary App ID.
Some Sign in with Apple configuration in Apple’s backend may not have been fully updated after the transfer.
Or the Services ID is not yet fully operational for the transferred apps in the new account.
We kindly request your assistance to:
Verify whether the transferred apps have been completely detached from the original App Grouping and primary App ID.
Confirm whether the new Services IDs under the new account are fully functional and eligible for Sign in with Apple with user.migration scope.
Help identify any remaining configuration or migration issues that may cause the invalid_client error.
If necessary, assist in manually ungrouping or clearing any residual App Grouping relationships affecting the new environment.
We have also generated and retained the original transfer_sub identifiers and are fully prepared to complete the sub mapping once the user.migration flow becomes functional.
Thank you very much for your time and support!
Topic:
Privacy & Security
SubTopic:
Sign in with Apple
Tags:
Sign in with Apple REST API
Sign in with Apple
Hi all,
I’m building a macOS-native C++ trading bot, compiled via Xcode. It sends REST API requests to a crypto exchange (Bitvavo) that require HMAC-SHA256 signatures using a pre-sign string (timestamp + method + path + body) and an API secret.
Here’s the issue:
• The exact same pre-sign string and API secret produce valid responses when signed using Python (hmac.new(secret, msg, hashlib.sha256)),
• But when I generate the HMAC signature using C++ (HMAC(EVP_sha256, ...) via OpenSSL), the exchange returns an invalid signature error.
Environment:
• Xcode 15.3 / macOS 14.x
• OpenSSL installed via Homebrew
• HMAC test vectors match Python’s output for basic strings (so HMAC lib seems correct)
Yet when using the real API keys and dynamic timestamped messages, something differs enough to break verification — possibly due to UTF-8 encoding, memory alignment, or newline handling differences in the Xcode C++ runtime?
Has anyone experienced subtle differences between Python and C++ HMAC-SHA256 behavior when compiled in Xcode?
I’ve published a GitHub repo for reproducibility:
🔗 https://github.com/vanBaardewijk/bitvavo-cpp-signature-test
Thanks in advance for any suggestions or insights.
Sascha
We have an app that has failed during the app review for the Japanese market but has been accepted in several other markets successfully.
We need the user's name in native Katakana format as we need it to be displayed in our restaurant Point of Sale systems for workers to be able to read and understand.
We use 'Sign up with Apple', but when doing so, if this returns an anglicised given and family name, we have to request the customer supply their Katakana format name so that our in-store systems and staff can process and fulfil their orders.
When the App Review process automatically tests the app, it uses "Apple John" as a customer's name. Since this is not a Japanese name, we ask for it again in the correct format, or we cannot allow the user to register.
This contravenes Apple's rules, and thus, our app is rejected. If the Apple identity used belonged to a user more typical of the target market, it would work as required.
Does anyone else have this issue, and how did you work around it?
Tim
Topic:
Privacy & Security
SubTopic:
General
Tags:
Internationalization
Sign in with Apple
App Submission
Hello,
I have encountered several challenges related to System Integrity Protection (SIP) state detection and code signing requirements. I would like to seek clarification and guidance on the proper approach to programmatically determine the SIP state.
Here are the issues I’ve encountered:
XPC Code Signing Check APIs:
APIs like setCodeSigningRequirement and setConnectionCodeSigningRequirement do not work when SIP disabled and that's ok given what SIP is.
LaunchCodeRequirement API:
When using Process.launchRequirement, the LaunchCodeRequirement API does not function anymore when SIP disabled.
The IsSIPProtected requirement behaves in a way that is not clearly documented -- it appears to only apply to pre-installed Apple apps.
Legacy APIs:
Older APIs like SecCodeCheckValidity are likely to be non-functional, though I haven’t had the chance to validate this yet.
Private API Concerns:
So to mitigate those limitations I prefer my app to not even try to connect to untrusted XPC or launch untrusted Processes when SIP is disabled. The only way to determine SIP state I could find is a low-level C function csr_get_active_config. However, this function is not declared in any publicly available header file, indicating that it is a private API.
Since private APIs cannot be used in App Store-distributed apps and are best avoided for Developer ID-signed apps, this does not seem like a viable solution.
Given these limitations, what is the recommended and proper approach to programmatically determine the SIP state in a macOS application?
Any insights or guidance would be greatly appreciated.
Thank you!
Topic:
Privacy & Security
SubTopic:
General