CDM+ Desktop uses a concurrent license model. You can install CDM+ on as many computers as you need, but only a certain number of users may use the program concurrently (unless you are on CDM+ Essentials or our unlimited Complete plan).
When the maximum number of users are logged in, the next login attempt will notify you that you’ve reached this maximum. Ask another client to log out or increase your licenses to bypass this message.
There is no limit to the number of Engage or CDM+ Mobile users, concurrent or otherwise.