My company has been sharing the redeem code to the company domain email address and allow staff to redeem the app with their personal Apple ID. However, we found that the redeem code is failing and claiming the Apple ID doesn't match the one associated with the invitation. I cannot find the documentation for this change, may I know if this is something permanent?

I am trying to add custom scheme (CFBundleURLSchemes) to my App Clip. I launch the app clip via TestFlight to cache it to the device then i try to access the custom scheme URL to launch App Clip but nothing happened. May I know if it is something I did wrongly or just App Clip does not support Custom Scheme?