How to Add a User License in QuickBooks Desktop 

Do you want to add the other user license in your QuickBooks Desktop account? It is easy to do and by doing this you can easily give access to the added user to access your QuickBooks company Files. By adding the user in your QuickBooks account helps the users to operate one file same time. Limited time users like up to 3 users can access a file same time in QuickBooks Pro and up to 5 users at a time in QuickBooks Premier.

https://www.askforaccounting.com/add-a-user-license-in-quickbooks-desktop/