New at Intercom
You can now set permissions so that only certain members of your team can reassign conversations that are already assigned to a teammate. This permission will prevent your team from worrying that a good lead, or an easy support request, will be taken from their inbox.
This permission only prevents reassigning conversations from an individual's inbox. All teammates will still be able to assign conversations that are currently unassigned, or in a team inbox. You can set permissions for your team here.