Please note, that licensing has changed with the release of version 12. When licensing the Enterprise Server concurrent users are not of importance any longer. Moreover, you license the number of users you need or would like to add to the server.
In detail, licensing of Password Depot is organized as follows:
Client (main application)
You need a client license (Windows) for each employee who is to work with Password Depot. So, for example, if you want 24 employees in your team to work with Password Depot, you need 24 single client licenses regardless of the fact of working with the Enterprise Server or not. Furthermore, this also applies for using Password Depot on a terminal server.
On the other hand, when working with the Enterprise Server, you need to license the number of users you want to add to the server. So, for example, if you want to add 18 users to your server, you need the server license "25 users".
Regarding licensing of the Enterprise Server, different server sizes are available. The server size always indicates how many users you can add to the server at maximum.
Why has licensing changed in version 12?
The old way of licensing, that is, concurrent users being of importance, is not practical anymore, especially since implementing the offline mode and since users are also able to connect to the Enterprise Server through mobile devices. Due to these new features, it is difficult to differentiate between connected and disconnected users because the latter can easily re-establish a connection to the server and thus start synchronization of a database, if required. Therefore, it is not effective anymore to count concurrent users who are connected to the server at the same time. Consequently, licensing has changed and is now organized as mentioned above.