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The Last Login report shows all users who have not logged in before a specified date. This helps keep track of inactive users that still count toward your license limit.
You can deactivate (remove user from all the groups he/she belongs to and remove him/her from any project roles he/she might have) and delete (remove user from Jira) users. To do that check the users you want to deactivate/delete.
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The Duplicate Users report is helpful because the users shown might not belong to the same groups in both directories and if the primary crashes, those users might end up having different permissions than expected.
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Deactivated Users
The Deactivated Users report shows the users who do not belong to any group nor do they have any roles on any projects. Deactivated users will not be able to log in and will not count towards your license limit. The report shows deactivated users from the specified directory.
You can activate (add user as member of a group - only groups who have Jira User permission) and delete (remove user from Jira) users. To do that you have to check the users you want to activate/delete.
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To Activate Users, a dialog will be displayed from where you can choose the groups to add the selected users to.
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To Delete Users a dialog will be displayed to confirm the action.
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