Can you deactivate a user? Can you re-add a deactivated user?

Yes, only "Owners" may deactivate users on their group account. Note: This action is permanent and the email cannot be used to reactivate or recreate the user account.

Only users with the "Owner" user role may delete or deactivate  a user from a group account. Please note, this permanently deactivates the user and cannot be reactivated/recreated using the same email address. 

Steps to delete or deactivate a user:

1. Navigate to the "User Management" tab.
2. Locate the desired user you wish to deactivate.
3. Click the "X" underneath the "Actions" heading.
4. Confirm the user deactivation within the new pop-up.