How to Change Apple Id on Mac Pro?

Change your Apple ID

Go to appleid.apple.com and sign in.
In the SignIn and Security section, choose Apple ID .
Enter the email address that you want to use as your Apple ID.
Choose Change Apple ID.

Can you Swap Apple ID on Mac?

Go to appleid.apple.com and sign in through a web browser on your Mac or PC. Next, click Edit in the Account section. Under your existing Apple ID, click on Change Apple ID.

How do I Remove an Existing Apple ID from my Mac?

On your Mac, open the Apple Music app. Or on your PC, open iTunes for Windows.
From the menu bar, choose Account > View My Account. You might need to sign in with your Apple ID.
Click Manage Devices.
If you want to remove a device, click Remove.