Create or open a group
Open Groups → My Groups. Search by name or select Create, enter a group name and save. Access to this area depends on role permissions.
Add members
Use Add in the group’s member section to select existing participants. Use the instructor tab for teachers. If permitted, Create lets you add a new person to the organisation. Confirm the member list after saving.
Create the right invitation
Open Invitation Codes and choose the required access type: registration, course, assignment or group.
Give the code a clear name and select the intended resource.
Set an activation limit and expiry date/time. In the documented interface, a maximum-use value of 0 means unlimited.
Use Personal Invitations when the code should work only for specified people.
A code is rejected
Check its resource, expiry, remaining activations and personal-user restriction. A code is tied to one resource; the documented access type cannot be changed after creation. Create a correctly scoped replacement when necessary rather than editing an unrelated invitation.
Before deleting
Deleting a code invalidates it, and the guide says it cannot be restored. Confirm the affected users and replacement plan first. Share invitation codes only with their intended recipients.