Why is the number of attendees different when viewed from Manage Session to when viewed from Mark Attendees?
The discrepancy is due to inactive users being counted on the Mark Attendees list. Depending on how you enrolled your users in the Learning Event Sessions, you may have included users who are already inactive. Note: The attending list from the Manage Session does not include inactive users.
Check Active & Inactive Users
1. Navigate to Manage People > Users
2. Switch to the Inactive Here is the list of all archived users
3. To check what Learning Event the user is enrolled, go to Sessions dropdown in their profile