You can obtain a count of unique users from Content Server, using the dm_usageReport job, or in AMP on the Documentum tab. Depending on your environment, there are cases where you have to verify whether different user login names actually belong to different users or only one user.

When Content Server is set up in domain mode, the user name stored for usage tracking includes the user domain as well as the user login name. For example, user1 in the marketing domain is stored as marketing\user1. If there is a login name user1 in the engineering domain, a login for this user is stored as engineering\user1. When usage tracking or AMP counts unique users, it counts marketing\user1 and engineering\user1 as two distinct users. Depending on your environment, marketing\user1 and engineering\user1 could be the same or two different individuals.

It is also possible that some of the Content Servers using that global registry for usage tracking do not use domain mode, so the user name is stored without a domain. In this case, there can be entries for user1, engineering\user1, and marketing\user1.

You can export the usage tracking data from a global registry if you need to examine the individual entries and verify the unique user counts.