Lectures are unable to be marked as completed

Update timeline

1. investigating Mar 11, 2026, 02:12 AM UTC

   We are aware of an issue with the Course Progress where lectures are not being marked as complete. Our team is actively investigating and working to restore normal performance as quickly as possible. Further updates will be posted here.

2. identified Mar 11, 2026, 02:39 AM UTC

   The course-taking feature on our site is currently experiencing stability issues - our engineering team is currently working to resolve it. This impacts both Udemy Business and Udemy.com. Symptoms are lectures are not able to be marked as complete, even after watching the content fully.

3. monitoring Mar 11, 2026, 08:24 AM UTC

   [Update] - Course completion seems to be fixed for new lectures consumed. Our engineering teams are now working on backfilling the data for the impacted interval. We truly appreciate your patience and understanding.

4. resolved Mar 12, 2026, 02:45 AM UTC

   We have resolved the issue with the Course completion feature on our site, but some users who watched the full course content during the incident may still see the lectures not being marked as completed. We appreciate your patience. [Action needed] Udemy is working to fix this issue automatically as part of the cleanup tasks from this incident, but it may take more time. If you urgently need this to be resolved, please contact support who can support you further.