Trainees need to be in an "Active" state to be invited or to take a course.
If you have "Archived" a trainee, follow these steps to unarchive or "Reactivate" an archived trainee.
1. Visit the Manage Users page
2. Next to the search box, click Advanced Filters or Filters.
3. The Advanced Filter will appear. Under Status Select "Archived" and then click search.
4. A list of all Archived trainees will appear.
5. Click on the Archived trainee and click reactivate.