iOS26 beta: AppClips are not working properly

Please file a Feedback report using Feedback Assistant, then post the number here.

I opened a feedback and the number is FB20169481

Is there anything we can do to get it working again? Could it be because it's an unlisted app?

Unfortunately, it's very critical for us that this solution no longer works with iOS26.

We have the same issue. It was working well with iOS 18, but with iOS 26 we get the error This operation couldn't be completed (ASDErrorDomain- Error 507.) .

The appclip works when run via the TestFlight, but not when open via an URL. So it seems the error is at the appClip invocation.

Any help to fix the issue is appreciated.

I have also opened a feedback and the number is FB20453270

@Verara20 May we ask which app/AppClip is affected in your case?

We are currently only experiencing this error with one AppClip, but another one (for a completely different app/development team) is working fine. So we are still trying to figure out why one works and the other doesn't.

The app that isn't working for us is an unlisted app. At first, we thought that might be the reason, but we simply don't know.

It's depressing that we can't do anything at the moment to get the solution working again with iOS26.

The console log shows that there are some requests that are going wrong and that didn't happen with iOS18.

error	15:05:16.940931+0200	appstored	AMSURLSession: [F50720EC] Session decoder failed. Result = (null); Error = Error Domain=ASDErrorDomain Code=507 "Invalid Response Status: 14501" UserInfo={NSDebugDescription=Invalid Response Status: 14501}

error	15:05:16.940942+0200	appstored	AMSURLSession: [F50720EC] Task completed with error = Error Domain=ASDErrorDomain Code=507 "Invalid Response Status: 14501" UserInfo={NSDebugDescription=Invalid Response Status: 14501}

error	15:05:16.941144+0200	appstored	[CLP2EFDBECB/com.kinegram.ios.emrtd-connector-app.Clip:0] Failed to fetch additional data: Error Domain=ASDErrorDomain Code=507 "Invalid Response Status: 14501" UserInfo={AMSServerCorrelationKey=WZQN3CQ6LEBDB7NCZKS5M447DQ, AMSDescription=Ein unbekannter Fehler ist aufgetreten. Versuche es erneut., AMSURL=https://play.itunes.apple.com/WebObjects/MZPlay.woa/wa/appClipAdditionalData?guid=00008140-000039C024A2201C, NSDebugDescription=Invalid Response Status: 14501, AMSStatusCode=200, AMSServerPayload={
    status = 14501;
}}

error	15:05:16.962506+0200	clipserviced	CPSInstallationController: Failed to start download session (0xd50d65950) for <private>: (NSError: domain: ASDErrorDomain, code: 507)

error	15:05:16.962766+0200	clipserviced	Fail to prewarm clip download. ID = [FD3560B2-691B-4654-9996-C72452AD0B77] Error: Error Domain=ASDErrorDomain Code=507 "Invalid Response Status: 14501" UserInfo={AMSStatusCode=200, AMSURL=https://play.itunes.apple.com/WebObjects/MZPlay.woa/wa/appClipAdditionalData?guid=00008140-000039C024A2201C, AMSServerPayload={
    status = 14501;
}, AMSDescription=Ein unbekannter Fehler ist aufgetreten. Versuche es erneut., NSDebugDescription=Invalid Response Status: 14501, AMSServerCorrelationKey=WZQN3CQ6LEBDB7NCZKS5M447DQ}

error	15:05:16.974951+0200	clipserviced	[2EFDBECB-9A85-48DA-9438-371028E336B3] Session failed with error: Error Domain=ASDErrorDomain Code=507 "Invalid Response Status: 14501" UserInfo={AMSStatusCode=200, AMSURL=https://play.itunes.apple.com/WebObjects/MZPlay.woa/wa/appClipAdditionalData?guid=00008140-000039C024A2201C, AMSServerPayload={
    status = 14501;
}, AMSDescription=Ein unbekannter Fehler ist aufgetreten. Versuche es erneut., NSDebugDescription=Invalid Response Status: 14501, AMSServerCorrelationKey=WZQN3CQ6LEBDB7NCZKS5M447DQ}

error	15:05:16.975281+0200	clipserviced	CPSInstallationController: Session (0xd50ded860) failed: (NSError: domain: ASDErrorDomain, code: 507)

error	15:05:16.975394+0200	ClipViewService	CPSLaunchContentViewController: -didFinishLoadingWithError: for proxy (0x8d73d0280), error: (NSError: domain: ASDErrorDomain, code: 507)

error	15:05:16.975423+0200	Camera	CPSClipRequest (0xd4120f720): Failed to show invocation UI for <private>: (NSError: domain: ASDErrorDomain, code: 507), proxy: 0xd406a8900

error	15:05:16.975430+0200	Camera	BCSURLAction: Error performing app clip open action: (NSError: domain: ASDErrorDomain, code: 507)

@DTS Engineer Is there anything we can do except wait?

@AxM1983 where did you get these logs? We currently experience a similar issue (https://developer.apple.com/forums/thread/803187) and hope some logs could helps us.

@pumpkinpaul You can access the console of a connected device this way in Xcode:

I have a small update, when upgraded to Xcode 26 (instead of Xcode 16), the appclip did not build right away. The reason was Apple has changed how we need to create the .entitlements files.

So I had to do the following:

 	<key>com.apple.developer.parent-application-identifiers</key>
 	<array>
-		<string>$(PARENT_APP_IDENTIFIER)</string>
+		<string>$(AppIdentifierPrefix)com.mydomain.parentID</string>
 	</array>

i.e add AppIdentifierPrefix + parentID instead of PARENT_APP_IDENTIFIER

With this fix, the appClip got build with Xcode 26.

My issue with appClip invocation is not yet fully fixed, but hope this will help someone. Let me know if someone found a better solution.

Note: I have seen it works in some phones with iOS 26 (like iPhone 14) when I use the appClip code (circular code), but not with plain QR code, and that too not on all phones (still not works on 14 pro max). But once it works on a given phone, it worked on normal QR code too (weird, I know). My best guess is that it' a cache issue.

Also, I learnt that apple-app-site-association (AASA) file structure has also changed.

{
  "applinks": {
    "details": [
      {
        "appIDs": ["MYTEAMID.com.example.myApp"],
        "components": [
          {
            "/": "/*"
          }
        ]
      }
    ]
  },
  "appclips": {
    "apps": [
      "MYTEAMID.com.example.myApp.Clip"
    ]
  }
}

i.e with respect to my previous AASA file, I had to do the following:

1. instead of paths we need to add components as above.
2. in the applinks we should add the main app bundle id (not the clip's bundle id)
3. removed "apps": [], from the applinks section.

Hope this will help someone.

@Verara20 Interesting discoveries, thank you for sharing. 🙏🏻

In the meantime, since we didn't see any other option and we didn't get a response in the feedback either, we published the same app again as a public app... and lo and behold, it works with iOS26 without any problems, even though we didn't change anything in the structure of the entitlements or the aasa file.

So it seems that the problem was indeed that it was an unlisted app with appclip.

@AxM1983 that's great to hear. After the above fixes, mine is working in some iOS 26, but not in all the phones. And it was public unlisted app from the beginning.

If you don't mind, can you share your AASA file, just as a reference.

Thank you.

@Verara20

And it was public unlisted app from the beginning.

What do you mean exactly? Was it a public app or an unlisted app? 🙂

This AASA file works for us:

{
   "applinks":{
      "apps":[
         
      ],
      "details":[
         {
            "appID":"MYTEAM.com.example.myApp",
            "paths":[
               "/native_app/*"
            ]
         }
      ]
   },
   "appclips":{
      "apps":[
         "MYTEAM.com.example.myApp.appclip"
      ]
   }
}

As mentioned, we haven't changed anything except re-publish the app as a public app again. We left the old unlisted app active for the moment so that the problem can be reproduced more easily.

Unfortunately, the error is still present, also in 26.1 beta3.