Define when an activity or material should be considered completed.
Activity completion can show learners their learning progress. As a teacher, you can make the completion of certain activities a prerequisite for viewing further materials or activities.

Activate completion tracking: Course Settings, section Completion Tracking. Now you can define how the completion of an activity or material is determined. See moodle.org for more information: Einstellungen zum Aktivitätsabschluss vornehmen.