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A site and org admin can't remove another one directly, so firstly another org admin need to remove this user from the organization by going to admin.atlassian.com > Click on the organization > Settings > Administrators > Remove the admin. After that, to remove their privileges or delete their account it's necessary to remove the group site-admins of their profile and then you will be able to revoke their access or delete their account.
Based on your valuable feedback, we have released several new features to help you gain administrative flexibility with authentication policies, visibility into shadow IT with automatic product disco...
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