An Account Manager is basically a person in the middle, between the Publisher (the designer) and the Collaborator (the client), who takes over the responsibility to send proofs across to clients.
This feature is only available to GoProof Admins.
Login to your GoProof account on our website.
Click on your Profile name located on the top-right corner of the screen and select My Account.
Select Enable Manager Workflow checkbox option in the Company Settings area.
Click Update to save the company settings.