From the dashboard navigation menu under Account, the user option helps you manage user information and permissions.
Adding Users:
You can add users to access your business and account information (i.e. partners, accountants) and assign permissions, including which locations they have access to if you have multiple merchant IDs.
Click Account
Click User Information (Users)
Click Add a new user
Enter name and email
Click assign locations to display the user permission page
Select location(s) for this user
Assign role(s)
Deleting Users:
Click on Account -> Users
Users assigned to your business displays
Click the arrow to expand the user list and the manager users page displays
Select users you wish to remove and click on delete (top right of page)