On call scheduling roles For more information, see User Roles. Table 1. Roles Role Description Contains roles Rota administrator[rota_admin] Creates new rotas and edits or deletes existing rotas. Can also manage all other aspects of on-call rotas and rosters (duty shifts). assignment_rule_admin Rota manager[rota_manager] Has delegated access to a specific group's rota and can manage this group's rota and associated data. Cannot edit or delete rotas. none Roster administrator[roster_admin] Manages on-call rotation information. none Delegate rota manager roleAs a rota manager, you can delegate your role to a member of your rota.