Course deadlines are useful if you want to limit how long trainees have to complete your course. You can set a course deadline on the Settings tab, under the Course Settings or Series Settings section. Then entering the number of days or weeks your trainees are allowed to complete your course/series after they receive the course/series invitation.
After the deadline, trainees who have not completed your course will not be allowed to access the course, but you will be able to extend their deadline in the Trainees tab if you'd like them to have access again. Check mark the box next to their name and under Trainee Actions, select Set Deadline. A Calendar window will appear. Select new Deadline date.
Trainees who do not complete the course in time are marked 'Missed Deadline' in reports.