I have recently transferred some of my apps from one account to another. When I did this the App IDs also transferred. However, the App IDs did not transfer for the WatchKit Apps or WatchKit Extensions.
I have tried to upload and after the upload has completed and appears in iTunes Connect Prerelease I receive an email about CFBundleIdentifier Collision.
I then tried to change the App ID for the Apple Watch app and see this error when uploading:
Attempting to change bundle identifier from com.domain.myapp.watchkitapp to com.domain.myapp.watchkitapp2 is disallowed for bundle MyApp.app/PlugIns/MyApp WatchKit Extension.appex/MyApp WatchKit App.app.
Do you have any suggestions? Thanks
Apple manually transferred the App ID for my Apple Watch App so I was able to upload to the new account.
来源：https://stackoverflow.com/questions/32212649/change-app-id-of-apple-watch-app