Moodle plugins directory: Course recompletion: Stats | Moodle.org
Course recompletion
General plugins (Local) ::: local_recompletion
Maintained by 
Dan Marsden, 
Catalyst IT
This plugin adds course level settings for recompletion - clearing all course and activity completion for a user based on the duration set notifying the student they need to return to the course and recomplete it.