How do I keep the existing data on my iPhone and stop my iPhone duplicating another iPhone which have common Apple ID

Or create a new ID for use on the iPhone 13.

Apple ID - create a new.      *

Apple ID – Create       -

Apple ID - Could Not Create or Could Not Set Up iCloud message.    *

Or contact Apple ID Support.  See the Apple Support articles below for contact information.  

Apple ID - Official Apple Support.    -

Contact Apple for help with Apple ID account security - Apple Support.  * (Link doesn’t always load)  

Get Support     -   Work through the screens to get a chat option. You may have to pick a slightly different problem.

Apple Support schedule phone call.  -

Apple on Twitter  -

aftab182 wrote:

How do I keep existing data on iPhone7 and stop my other iPhone pro max 13 from duplicating each other as they have same Apple ID

Sign out of the apple id on the 13.