I have an iOS app (SwiftUI) that includes recurring subscriptions. To allow users to manage their subscriptions I have implemented manageSubscriptionsSheet according to apple documentation. When I published the app last year for iOS17 and iOS18 this was working well. Now I have gotten a user report that this features yields No connection error instead of the abonnements on iOS26. I have tested on my iPad running iOS 26 as well as on the simulator with iOS 26 and 18. In all cases I get the error. I can press Retry in the dialog and am prompted for AppStore credentials After entering them, again the same error. I can not find a single hint on why and how to fix it.
Best wishes, Volker