I have a problem, I have a free developer account and I created an iOS app in Xcode and gave it a bundle identifier for the example “Company.AppName”, but now I want to build builds and send to testflight and I asked a colleague at work for a paid developer account, then from his account I wanted to create an identifier and in the Bundle Identifier field I entered “Company.AppName” and I got an error.
“Failed to register bundle identifier. The app identifier “Company.AppName” cannot be registered to your development team. Change your bundle identifier to a unique string to try again.”

For those who say just create an app under a different bundle id, I can’t do that because the main functionality in my app won’t work.
What should I do, how can I create an app in AppStoreConnect with exactly the bundle identifier “Company.AppName”?