After troubleshooting with sysdiagnose I was able to find these two traces: default 2024-03-12 00:44:52.153225 +0100 clipserviced Getting app clip record with bundle ID error 2024-03-12 00:44:52.153947 +0100 clipserviced Unable to retrieve app clip record error 2024-03-12 00:47:07.804805 +0100 clipserviced [AF0F681D-A200-4903-AD8C-436B19733C3C] Session failed with error: Error Domain=ASDErrorDomain Code=907 "(null)" info 2024-03-12 00:47:05.268081 +0100 clipserviced CPSClipInvocationPolicy (0x2501f61c8): Determining account policy. info 2024-03-12 00:47:05.270951 +0100 clipserviced CPSClipInvocationPolicy (0x2501f61c8): Obtained ASDAccountStatusCode: 0 info 2024-03-12 00:47:05.270956 +0100 clipserviced CPSClipInvocationPolicy (0x2501f61c8): Determining clip policy. info 2024-03-12 00:47:05.270965 +0100 clipserviced Performing age verification info 2024-03-12 00:47:05.270977 +0100 clipserviced Verfiying app rank: 100 to restrictionsRank: 1000 info 2024-03-12 00:47:05.270991 +0100 clipserviced CPSClipInvocationPolicy (0x2501f61c8): Obtained ASDClipRestrictionsTask response code: 0 default 2024-03-12 00:47:07.793092 +0100 clipserviced LaunchServices observer: InstallsStarted default 2024-03-12 00:47:07.793221 +0100 clipserviced NotifyToken::RegisterDispatch(com.apple.LaunchServices.database) fired for session key error 2024-03-12 00:47:07.804805 +0100 clipserviced [AF0F681D-A200-4903-AD8C-436B19733C3C] Session failed with error: Error Domain=ASDErrorDomain Code=907 "(null)" default 2024-03-12 00:47:07.804815 +0100 clipserviced CPSInstallationController: Session (0xbd2a2cd40) User Canceled.

Whenever you see the message "This app is not currently available in your country or region" means that you didn't enable certain countries in the app store connect. Go to AppStoreConnect > Apps > Your App > Distribution > Pricing and Availability > App Availability > Manage Availability and select the countries in which the app clip should work!

This is the the diagnostic of my iPhone of the app clip experience it gives me all green and works perfectly well:

Haven't reached out a solution yet, I've been following the case with the Apple Engineering Team, and they asked me for the sysdiagnose.log again, I hope they can find a solution to this issue, and will update the post once we reach a solution over this issue

If that's really the reason why then it's just misleading, because how come I can upload an App Clip and appstoreconnect says everything is ok, but then it is not? Also what makes it even weirder is that some people with Chinese Apple IDs are able to download it and use it, while others customers with an Italian or European Apple IDs see "App Clip non è disponibile" This is very frustrating and we are still waiting to get a reply from the Apple Support which has not contacted me in the past 2 weeks, at this point without any guide we are just blindly rewriting the app in native in a hope that it fixes the issue. We'd love to just know what's causing the issue and receive a feedback from Apple around that so that we can move forward to fix the issue, but the lack of support is real we feel we've been raising the issue and the support is not looking into that at all, last week they sent me an email requesting the same information again, which at this point I don't know what else to say which is the sysdiagnose I posted above

@nicholasjcameron unfortunately they have not yet reached out to me since last week, we've been waiting for the support to reply us, unless I send an email they won't actively reach out to me