I encountered the same thing recently and Sage support clarified.
Client purchased 5 users.
With 5 active users in Sage 100 windows (not just the desktop), *Info shows 7 users licensed, 0 available.
This is because Sage reserves 2 additional connections:
- One for the Administrator (in case everyone gets locked out of the system)
- The second for external connections (i.e., CRM integration).
Those 2 additional connections only serve those purposes. In other words, they are not 'usable' to the extent that 7 users can be logged into Sage 100 using the program.