All primary functionality of the product requires a login with a user account. The account saves settings like permissions and memberships, but also settings of the user interface, color scheme and the user avatar.
In this dialog many user accounts can be deleted in one step. This is particularly useful when users can be or are created automatically and many users are created over time.
To delete long inactive users use the slider 'Last Access Time of User'. Last Access Time is the date when one logged in with this account.
User accounts for which no Last Access Time can be determined, probably because noone ever logged in with that account, will show 'Unknown' as Last Access Time. To delete only those users move the right button of the slider to the very left on top of the left button.
To delete users with certain properties please use the search field. You can search in user fields similar as you can do in the user and group manager.
In the list select the users to delete or delete all users matching your filter criteria (Last Access Time Slider + search field).
The deletion of many users can take several minutes depending on the system.
Important: Deletion of user accounts can not be undone. It is recommended to create a backup beforehand.