Logging in to your company file
If your company file has user accounts set up, you'll be asked to log in when you open the file. If you don't know your username and password, check with person who is the administrator for QuickBooks.
To log in to a company file
When you open a company file with user accounts, you'll be asked to log in. Double-click your username and enter your password.
To log out
It's a good idea to log out whenever you're finished working with the company file. To log out of the company file, choose File > Close Company/Log Off.