Thanks for posting here, @rachelhouston,

Joining the thread to share some insights about this concern you're having. If those licenses are different, it cannot be set for a multi-user system. 

If you want other people to access the same file, a hosting service will work. This will help users remotely access your PC away from your desk. We have an app website where you can find hosting tools to help you. See this: Apps for QuickBooks Desktop 

We also have a separate forum called Intuit Developers, where you can find engineers who can help recommend third-party hosting applications to use. Click this link to our website: Intuit Developers Community.

Only licenses with multiple seats can be set up in a multi-user environment. If both licenses are the same, you can install it on workstations then use the steps in this article to set up and install a multi-user network for QuickBooks Desktop

First, sync the licenses by going to the Help menu, select Manage My License > Sync license data online, then click OK.

If you need further help with anything in QuickBooks Desktop, let me know in the comment section. Have a nice day!