Password Manager has two reports that might be usefull for monitroing:
User Activity report, that shows all activities of user within the application – enrollment, successful and failed password reset and change attempts, unlock operations – between two specified dates.
User Enrollment report, that queries all users of all manged domains and shows if they are enrolled or not. It also shows the OU that a user belongs to and the e-mail address specified during enrollment (is only asked if Additional authentication feature is enabled)
Reports can be generated online, or downloaded in .csv format
To get to the Reports page, login the Helpdesk portal, and click Reports button under Summary