All users including Students, Teachers, Admins, Managers who have logged into Moodle from last 30 days will be counted as Active Users. It is calculated at the end of every month.
For e.g. Suppose a site has 600 Students, 25 Teachers and 2 Admins.
In past one month only 400 students, 20 teachers and 2 admins have logged in.
Then for our system, the total number of active users will be counted as 422.