Hi i am unable to see Update Apple ID setting

Tap on it or tap  ❯

Then tap Continue.

Then Enter your Apple ID password, then follow the onscreen instructions.

You are sign in here .  .  .  with your Apple ID & Password.

Your Apple ID is the personal account you use with all Apple products and services. It includes the email address and password you use to sign in, as well as the contact, payment, and security details that you use with Apple.

You can’t merge multiple Apple ID accounts.

So use the same Apple ID.