Once your course is published and people have started taking it, we don’t recommend making major changes (e.g. adding/removing lessons, editing quizzes) as this will affect the grades and completion status of users who are already taking (or already completed) the course.

Minor text edits are fine, but anything that will affect the overall completion status should be avoided.

If you decide your course needs an update, with extra lessons, different quizzes etc, the best solution would be to create a new version of the course, either from scratch, or by duplicating the existing course and then making the required updates before publishing.