Create Document Management User
A Supplier Primary Contact user can be created during the supplier
                organization shell creation, or added later to the supplier's general information.
                You can also create a supplier user using the standard process (see Configure a User), add the permissions, and assign them to the
                general information.
Note: This task is identical for both Primary Contact and RFI
                    Document Contact users, however, if you are creating a new RFI Document Contact
                    user using the standard create user workflow, only the 'Document Management'
                    permission is automatically added to the user profile.
