change team member name

The name that you enter while creating the user in the Admin Console, shows up only in the Console.

Other places that the user sees, use the name entered by the user while creating their Adobe account.

The name that you enter in the Admin Console can't be edited, you can remove the users and add them back with the required name.

The name that the users enters while creating the Adobe account, can be edited. Here is how: https://helpx.adobe.com/manage-account/using/edit-adobe-account-personal-profile.html