The default rule is that the learners should complete all units of the course.
If you want to edit this rule and select another one, login as an instructor to the course and move to the course Rules. (1)
Move to the Completion Rules section (2) and through the drop down list, select one of the following:
-All units must be completed
-Certain units must be completed (3) . In this case another field will show up that will allow you to select the required unit(s) (4):
Use this rule when some of the course units are optional.
- >50% of units must be completed
- >70% of units must be completed
- Test passed (5). In this case you will have to select the test (6) from the dropdown list.