Fix for "Error - Can't Remove Mailbox Search"

You may receive the following error when trying to remove an In-Place eDiscovery & Hold search item:

Error

Can't remove mailbox search 'Test In-Place Hold' because there is still at least one mailbox on In-Place Hold.

In order to delete the In-Place eDiscovery Hold you need to clear the check box to "Place content matching the search query on selected sources on hold" first. Edit the In-Place Hold item and click In-Place Hold, then clear the top check box and click Save.

Now you can successfully delete the In-Place Hold by clicking the trash can.