Demystify code signing and its importance in app development. Get help troubleshooting code signing issues and ensure your app is properly signed for distribution.

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App ID Prefix Mismatch When Updating Old iOS App (2010) - "An App ID with Identifier is not available"
Hi all, I'm a solo iOS developer trying to update an app I released in 2010. My current Team ID is Q37598Q8GE, but the app's original App ID uses an old prefix, YHX995W43P. When I try to create a new App ID with the original Bundle ID (eu.andela.woordenes) to generate a new distribution provisioning profile, I get the error:An attribute in the provided entity has invalid value An App ID with Identifier 'eu.andela.woordenes' is not available. Please enter a different string. I understand this might be due to the old prefix from pre-2011, when Apple allowed multiple prefixes per account. I still have access to the app in App Store Connect and want to push an update, not create a new app. How can I resolve this?Can I reuse the existing App ID (eu.andela.woordenes with prefix YHX995W43P) for a new provisioning profile, or do I need to match my current Team ID (Q37598Q8GE)? If the Bundle ID is already taken by my current app, how do I update the app without changing the Bundle ID? Any steps to fix the prefix mismatch in Xcode or App Store Connect?
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943
Nov ’25
Persistent Code Signing Failure (HTTP 403) After Accepting Apple Developer Agreement
Hi everyone, We're experiencing a critical and persistent code signing failure (HTTP 403) after accepting the latest Apple Developer Agreement, blocking our application release. Problem: Despite confirming the new Apple Developer Agreement is signed and active on the portal, code signing attempts return an HTTP 403 error, stating a "required agreement is missing or has expired." Steps Taken: Accepted new Apple Developer Agreement. Verified active developer membership and valid certificates (good for years). Cleared caches, restarted systems. Confirmed Team ID, Apple ID, and provisioning profile validity. Any help is greatly appreciated, its been stuck for more than 2 days now.
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230
Nov ’25
how to handle setup for NFC without NDEF & PACE and still support iOS 15.0
We have NFC capabilties enabled for our app ID - com.uob.mightyvn but our minimum deployment target is 15.0. We do not have an option deselect PACE from provisioning profile. Hence, the validation is failed for IPA. Invalid entitlement for core nfc framework. The sdk version '18.2' and min OS version '15.0' are not compatible for the entitlement 'com.apple.developer.nfc.readersession.formats' because 'NDEF is disallowed'
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417
Nov ’25
App Packaging: bundle format unrecognized, invalid, or unsuitable
I am trying to package a Filemaker 18 Runtime app. A week ago, I managed to get 90% of the way towards doing as much, using MS Copilot as a guide. Unfortunately, due to my confusion over the landing stage files, I decided to start the process from scratch. This time, I fell at the first stage: Code Signing my .app Bundle. The Terminal command: codesign --deep --force --verify --verbose \ --sign "Developer ID Application: ME (V********)" \ "/Users/Me/Documents/Apps/MyApp/Runtime/MyApp/My App.app" Returned the error: /Users/Me/Documents/Apps/MyApp/Runtime/MyApp/My App.app: bundle format unrecognized, invalid, or unsuitable In subcomponent: /Users/Me/Documents/Apps/MyApp/Runtime/MyApp/My App.app/Contents/Frameworks/FMWrapper.framework No matter how many separate elements within the bundle I sign, I encounter the same error message. A few days ago, the identical command worked first time. I would be obliged for any help you can provide. Thanks.
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269
Nov ’25
Provisioning profile entitlements
Hi, I am developing a iOS app with Packet Tunnel Provider Network Extension. I manage signing manually. I created a distribution provisioning profile. Then when I archive and click "validate" I get this error: Your application bundle's signature contains code signing entitlements that are not supported on iOS. Specifically, value 'url-filter-provider' for key 'com.apple.developer.networking.networkextension' So I run security cms -D -i profiles/vpn_distribution.mobileprovision and I see there <key>Entitlements</key> <dict> <key>com.apple.developer.networking.networkextension</key> <array> <string>app-proxy-provider</string> <string>content-filter-provider</string> <string>packet-tunnel-provider</string> <string>dns-proxy</string> <string>dns-settings</string> <string>relay</string> <string>url-filter-provider</string> <string>hotspot-provider</string> </array> Where are those coming from. My entitlement file has <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd"> <plist version="1.0"> <dict> <key>com.apple.developer.networking.networkextension</key> <array> <string>packet-tunnel-provider</string> </array> <key>com.apple.security.application-groups</key> <array> <string>group.my-app-group</string> </array> </dict> </plist> What is happening here. How can I get a provisioning profile that only has the entitlements that I actually need?
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160
Nov ’25
How to use the WebAssembly (wasm) binary module in macos App
During the release of our macOS App, we encountered the following issue: We need to support dynamic code loading of WebAssembly (wasm) inside our App, mainly by loading WebAssembly (wasm) binary modules. We discovered a problem: a wasm file is neither an executable nor a bundle, so it cannot be code-signed. Since our App needs to pass notarization, we have not set the com.apple.security.cs.allow-unsigned-executable-memory entitlement. Without setting com.apple.security.cs.allow-unsigned-executable-memory, loading a wasm module results in an “unsigned code” error that causes the process to crash. Could you please advise on what we should do to avoid this problem? Is it possible to apply for a special entitlement to allow com.apple.security.cs.allow-unsigned-executable-memory?
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416
Nov ’25
App Packaging: Error: HTTP status code: 403
Coming from Windows, I'm finding Mac app packaging farcically complicated, to the level of a Python sketch. I mastered Windows packaging, via Inno, in an hour or so, but it has taken me, on and off, the best part of a week to get to the point I am at with the Mac OS, and I'm nowhere near finished (rather, it hasn't finished with me). Every time I surmount one hurdle, another pops up, seemingly just for the jollies. I'm currently stuck at: 'Error: HTTP status code: 403. A required agreement is missing or has expired. This request requires an in-effect agreement that has not been signed or has expired. Ensure your team has signed the necessary legal agreements and that they are not expired.' My account lists no agreements in this category. I understand the need for security, but not the labyrinthine nature of the process. An inner-party member in the former Soviet Union overheard a drunken Stalin say, “I trust no one; not even myself". Apple trusts no one, but has true contempt for developers. Is there a simple way to work through the packaging process? Let me rephrase that: please God, let there be a simpler way of working through the process! Regards, in extremis, Richard
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1.2k
Oct ’25
Building macOS apps with Xcode 26 on macOS 26 VM
I'm trying to setup a macOS 26 build environment in a VM (using UTM and the virtualization framework Apple provides). I have Xcode 26 installed and have logged into my Apple ID and verified that the team and other configuration looks fine in Xcode settings. When trying to build the macOS app, I see errors saying the VM's device ID has not been registered. I have confirmed that the device ID is registered both in the Provisioning portal AND the downloaded .provisionprofiles (in Library > Developer > Xcode > UserData). This problem appears on multiple targets (e.g. the main app and extensions). If I try to manually provision the app, using the Provisioning portal, I can build the product, but it will not launch because of Gatekeeper issues. Finally, signing to run locally doesn't work either. As the app launches, frameworks refuse to load because Team IDs don't match. With ad hoc provisioning, there are no Team IDs. I've come to the conclusion that this just isn't possible. Which is a shame because I need to support products with a build environment on macOS 15 and cannot move over to macOS 26 yet. I suspect many developers outside of Apple are in a similar position.
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7.5k
Oct ’25
Automatic Signing failed and Provisioning profile is missing the activitykit
I am a professor at the Mercer University School of Medicine (Macon, GA) and I teach a stress reduction course for first year medical students. I am developing an app to allow the students to trace their mediations as well as time them. Using ChatGPT with Xcode, I was able to get all the features in the app working except that the stopwatch timer would not continue when the iPhone goes to sleep. When ChatGPT made some changes, the build failed because automated signing failed and the com.apple developer.activity kit entitlement is missing I don’t see Live Activities in the capability section of signing & Capabilities and I don’t know how to fix the provisioning profile. How can I get help for this? Thank you!
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304
Oct ’25
iOS App Exists after launch
Hello, my iOS apps are exiting right after launch on a few of our iOS devices. I tried a couple of my apps that are deployed to our fleet and they do the same thing. If I run the app(s) in the Simulator it works fine and if I run the app(s) on the offending devices it works fine as well. Once I stop the run in Xcode the app on the device will not launch. I'm thinking something is missing like a certificate etc. Just not sure. Any ideas on how to troubleshoot this? I would really like to get this fixed.
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379
Oct ’25
Notarization Stuck "In Progress"
Hello Colleagues, We have been seeing a delay in our Apple notarization submission that hangs for hours "in progress" without completing: This issue has been occurring since Friday, October 17th. We have also checked the Apple System Status page and there is no indication of any outage for Apple notarization.
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162
Oct ’25
Unable to Staple Notarization Ticket – SSL Certificate Mismatch for oscdn.apple.com
Hello Apple Support, While attempting to staple a notarization ticket for our signed installer package, the stapler command fails with Error 65. Upon investigation, we found that connections to oscdn.apple.com present an SSL certificate issued to a248.e.akamai.net, which does not include oscdn.apple.com in its Subject Alternative Name (SAN). This mismatch prevents our macOS environment from validating tickets and completing the stapling process. Steps tried: Verified notarization status (Accepted). DNS flushed, tried different DNS (8.8.8.8, 1.1.1.1). curl to oscdn.apple.com consistently fails with SSL error 60. Please advise on resolving this certificate mismatch. also when I try to run the stapler command with my pkg "xcrun stapler staple/Users/mactest/Desktop/IPMPlus_Macos_Installer.signed.pkg" getting the output like :- Processing: /Users/mactest/Desktop/IPMPlus_Macos_Installer.signed.pkg Could not validate ticket for /Users/mac-test/Desktop/IPMPlus_Macos_Installer.signed.pkg The staple and validate action failed! Error 65. please help Thank you.
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517
Oct ’25
Unable to test my apps, crashing with provisioning profile validation
Since around September (iOS 26 release), i'm unable to test my app normally. It says "internet connection is required to verify [my certificate id]", or just crashing. All terms and conditions accepted, everything is valid, certificates are OK. Reinstallation via xcode does not help. Removal of provisioning profile, generating new does not help. Revoking of certificate and generating new does for around week, then it happens again, but do i need to do it every week now? In logs i see the following: default amfid validation failed because of missing trust and/or authorization (0xe8008026) error amfid not valid: 0xe8008026: The provisioning profile requires online authorization. error amfid Unexpected MISError (0xe8008026): The provisioning profile requires online authorization. default +0300 amfid /private/var/containers/Bundle/Application/5B8E560E-75B2-46EF-8606-02072D99E9CF//Frameworks/oss.dylib not valid: Error Domain=AppleMobileFileIntegrityError Code=-400 "An unknown error was encountered" UserInfo={NSURL=file:///private/var/containers/Bundle/Application/5B8E560E-75B2-46EF-8606-02072D99E9CF//Frameworks/oss.dylib, NSLocalizedDescription=An unknown error was encountered} default kernel AMFI: code signature validation failed. It looks like apple validation servers are not working, or is it iOS bug? All provisioning profiles are showing like "valid" in apple developer center. My network is not behind a proxy, connection is direct. If use EXACTLY the same app, signed with the same provisioning, same signature, on another test device, it works! When i reset current device to default settings and installing the EXACTLY same app after it, it works as well. Looking for a help from apple developer support
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104
Oct ’25
Failed Registering Bundle Identifier of watch app
Hi, after 2 years of not updating my app on appstore i wanted to submit an update for my iOS app which also containts a watch app target. When i try to submit it to upload it i get the following errors: Failed registering bundle identifier The app identifier "(myappBundleID).watchkitapp" cannot be registered to your development team because it is nit available. Change your bundle identifier to a unique string to try again. No Profiles for "(myappBundleID).watchkitapp" were found. Xcode culdn't find any iOS App Store provisining profiles matching "(myappBundleID).watchkitapp" Since i have my app already in store with that bundle identifier i don't know why it can not be registered to my team. Also i don't want to change the bundle identifier because then i can not publish it as update to store.
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1.7k
Oct ’25
Developer ID Notary Service - Outage
I’m unable to notarize the executable and the .app — the status has been showing “In Progress” for over an hour. Upon checking the xcrun logs, it indicates that the submission ID was not received. I also noticed there’s an Apple Developer Service outage reported since October 8, 2025. Could you please let me know when this outage is expected to be resolved? It would be very helpful.
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298
Oct ’25
“In Progress” status stuck for over 21 hours with no result
Hi everyone, I’ve just subscribed and configured my Apple Developer account. I tried to notarize the first binary I need to distribute via Homebrew, but I’m experiencing an issue where the process has been stuck in “In Progress” status for more than 21 hours, without completing or returning any errors. Here’s the relevant history: createdDate: 2025-10-15T21:53:41.343Z status: In Progress
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355
Oct ’25
“In Progress” status stuck for over 2 days with no result
Successfully received submission history. history ...... -------------------------------------------------- createdDate: 2025-10-19T18:34:47.472Z id: d3248896-7841-421e-9470-101df9d0da21 name: ... status: In Progress -------------------------------------------------- createdDate: 2025-10-19T18:12:45.325Z id: e5822fa0-5bcf-4610-81fc-9f541e8ad189 name: ... status: In Progress
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270
Oct ’25