In some rare instances in case of iPad2 and iPod Touch 4th generation, FaceTime may not be able to verify your email address following setup and may display the message, “Unable to verify email because it is already in use”.
The cause of this error most likely is that you may have more than one Apple ID that shares the same email address. Try one of the following to resolve the issue:
- This error message means that your email address is already associated with another Apple ID. It could be tied to GameCenter, iTunes Store, or another Apple ID. Try using your Apple ID for those services to log in to FaceTime on your device.
- If you wish to use a separate Apple ID for FaceTime, unlink the email address from any other Apple ID before trying to set it up as a separate Apple ID for FaceTime.
- If you would like to change your Apple ID to another email address, go to My Apple ID and follow the instructions on how to change Apple ID.