Groups have a maximum enrollment of 200 users. If there are more than 200 users in a course, you can create new group categories; there is no limit on the number of group categories in a course.
If you want users to see all users and content for a course but be a part of a group for a specific project or activity, use the Groups tool. However, if you want users to only see learning materials and users from their own section, use the Sections tool.
To organize users' work on projects and assignments or to create special work areas for users with different learning needs, use the Groups tool.
Users can belong to multiple groups within the same course, but cannot self-enroll in more than one group. Instructors can add users to other groups at any time.
For each group, create separate discussion forums, assignments, and Locker areas to work in.
Grade members of groups individually or as a team.
Before setting up groups, know how you want to organize them. The following factors can affect how users enroll in groups:
Setting groups up before or after you've enrolled users.
Enabling auto-enrollment in groups.
Enabling randomization of users in groups.
Enabling self-enrollment in groups.
The Enrollment Type you choose.
Set up groups after the majority of users enroll in your course. This gives you a better idea of how many users you are organizing and how many groups you need. Setting up groups after enrollment can also ensure better distribution of users between groups.
For users to enroll in groups automatically, the Can be auto enrolled into groups permission must be enabled. Contact your site administrator if you experience difficulties.