Hi there, New to this forum. I have an iOS/iPadOS app already published in the App Store, and it works great as a Mac Catalyst app on my Mac. However when uploading to App Store Connect, I get the message: Failed Registering Bundle Identifier The app identifier "maccatalyst.nl.lai.prep-app" cannot be registered to your development team because it is not available. Change your bundle identifier to a unique string to try again. So the organizer adds the maccatalyst in front of the Bundle Identifier automatically, but for some reason I get the message it's not available. I've already added the macOS App as a platform on App Store Connect. The Bundle ID (nl.lai.prep-app) is obviously registered as the app is already available on iOS/iPadOS and I have enabled 'Mac Catalyst' in my App id Configuration on the developer portal. In Xcode macOS (Mac Catalyst) has been added as a destination. I contacted developer support, but they couldn't see anything wrong 🤷‍♂️ and suggested I would ask the developer community on the developer forum for advice, so here I am. Who has suggestions on what I should do?