Hello Quinn, the problem seems to be solved with Xcode 26.5 – so I am fine now! Cheers Brian

Hello Quinn, thanks for your reply. The deployment target is iOS 17.7 In the Enhanced Security capability I also added Hardware Memory Tagging (but not the soft mode) The project had C++ code in it, since I did use the Receigen App (Mac App Store) for receipt validation, but I removed all the code including OpenSSL when I switched to StoreKit 2. Currently the project just uses Objective C / plain C and Swift but no C++. Cheers Brian

I am a little bit confused: Since our users have(!) their app data in the app group container we should: not switch to a profile based app group or 2. switch to a profile based app group (and omitting the Team ID prefix, since it is automatically added) ?

Thank you for your reply, we will now implement this method :)

Thank you!

Hello Incogn1to, could you please share which which library you are using to generate the key pair (ES256) that make up the passkey ?

Same for us too !

If have the same question and I hope it is possible that apps with different bundle ids can join the same GroupActifity if the variable activityIdentifier is given the same value. Can someone confirm this?