I put wrong Apple ID when setting up husband’s computer. Nothing in sync noe

Might be easier to wipe it and start over, if you’ve used your Apple ID and merged ~everything of yours into the new install under the spouse’s preferred login username.

It’s certainly possible to create a second Admin login associated with the expected Apple ID, but… wrong name.

Erase and reinstall macOS - Apple Support

quasicorp wrote:

How do I change Apple ID on new computer

Sign out of the Apple ID— and try again

>System Preferences>Apple ID>Overview>Sign out

Set up your Apple ID preferences on Mac

Sign in to your Apple ID preferences on Mac