Hey there, I have an app where I create custom Advanced App Clip Experiences for other businesses which seems to be a valid thing. I do create them via API. Upon creation everything looks fine: when I go to App Store Connect -> App -> Advanced App Clip Experiences, I do see the new App Clip Experience I've just created. Their status is Received (as any other active experiences) and have a custom URL. The issue is weird timing when the Advanced App Clip Experience actually becomes available on the iPhone (can be triggered via App Clip Code, etc). Some experiences become available literally immediately but others take days (some take 1-2 days, some take ~5 days). I'm not sure why there's a bid difference for an Advanced App Clip to be actually active. Does anyone have any kind of experience with that? I don't change domain settings, app's settings, etc. I'm just creating a new experience (both via API or manually at App Store Connect) and I do have different "activation" times for different App Clips. Same when I delete an Advanced App Clip Experience, it will still be available for next couple days. I get there might be caching stuff, etc. But the difference is quite huge and makes no sense since as I've mentioned some clips become available immediately but some takes days to be available. Thank you!

We’re seeing unexpected NFC behavior once our app has 50+ Advanced App Clips created. Expected: Scanning an NFC tag with a URL that is NOT an App Clip invocation should show the standard “Open in Safari” notification. Actual: After we create ~50+ Advanced App Clips, scanning NFC tags for URLs on the same domain that are not associated with App Clips consistently shows “CPSErrorDomain error 2” instead of the Safari prompt.
 QR codes for the same non–App Clip URLs work as expected (shows Safari prompt). Clearing the App Clips “Experience Cache” sometimes helps briefly, but the error returns on consequent scans. Notes: Domain has valid AASA. App Clip invocation URLs work as expected.
 The issue appears tied to the number of Advanced App Clips configured. Below ~50, non–App Clip NFC scans behave correctly; above that, they fail.
 Affected across multiple devices and iOS versions tested. Repro steps: Configure 50+ Advanced App Clips for paths on a single domain.
 Encode a different URL on the same domain that is NOT listed as an App Clip invocation into an NFC tag.
 Scan the NFC tag on iPhone.
 Observe “CPSErrorDomain error 2” instead of the “Open in Safari” notification. Impact: blocks our NFC use case for regular web links once we scale App Clip experiences. Sysdiagnose #: FB20563121

Unexpected behavior encountered when scanning NFC tags. Imagine a link shortener web service where users can create lots of different URLs that are hosted on the same domain eg, https://short.com/unique-path The service has optional App Clip capability -- users can select any of their links and have the service create an App Clip for the selected link(s). Users can encode their URLs into NFC tags and have their customers scan NFC tags. Let's take just two URLs for example: https://short.com/foo https://short.com/bar The /foo link does have an App Clip associated with it while /bar does not have it. Each link has been encoded into appropriate NFC tag. Expected behavior when scanning from an iPhone: /foo -- shows an App Clip popup. /bar -- shows a "Open in Safari" default notification. What's actually happening /foo -- opens App Clip poput with correct metadata (title, subtitle, image) which is totally expected behavior. /bar (the one that doesn't have app clip associated with it) -- opens an App-Clip-like popup with the following error: CPSErrorDomainError 2 (see attachment below) So for some reason when someone scans an NFC tag with a URL that is not an App Clip and never has been -- it always shows that error regardless whether the URL exists or does not exist. I've tried few different/random URLs (which don't have an App Clip associated with it) and all of them show the same error. Additional details: All links use the same domain and URL format: domain.com/path where path is a short string of random a-Z characters. All App Clips are created at the same iOS app. AASA is good: Cache and Debug -- both green. This issue has happened to lots of users on lots of different iPhones and iOS'. Since the issue's been happening to lots of different users on different iPhone(s)/iOS' no sysdiagnose is attached. Actually it works the same on every device/iOS we've tried. Before submitting the issue, I've found few other developers reporting the same issue. What's interesting though is none of the links I've went through comes with a definite answer and it seems like this issue just randomly comes and goes without any specific changes on the server and/or iOS app. Dropping the links of similar issues below. https://developer.apple.com/forums/thread/671433 https://developer.apple.com/forums/thread/665969 https://developer.apple.com/forums/thread/775316 https://developer.apple.com/forums/thread/764545