Roles in the WMS define what parts of the system a particular user has access to. Therefore it is important to know what roles is each user assigned to within your account. WMS offers quick and easy way to look after your user-roles mappings with the new Manage User Roles feature.
Simply click on Users -> Manage User Roles and you can view your mappings either by a single role or by a specific user. The system shows you what users are in a particular role and lets you add or remove them.
The two most important roles related to content editing are Editor and AccountAdministrator. Please note that Manage User Roles is a WMS Professional level feature.