'How to upload dev build to apple test flight with diffrent bundle id

Because of incompatible changes on the backend I want to upload my app with a diffrent namespace and config to testflight for internal testing. I dont want to publish this version.

The production namespace is de.domain.app and dev is de.domain.app.dev. How can I publish the dev version in testflight?

Do I have to create a completely new app in app store?

ios


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