To ensure that only a manager can run a specific flow action, the best approach is to add a privilege to the flow action form (B) and then assign this privilege to a role that is exclusive to managers. This role is then associated with the access group designated for managers. Privileges provide a granular level of security that can be used to control access to specific actions within a Pega application, such as executing a flow action. By leveraging privileges, you can ensure that only users with the manager role, who possess the necessary privilege, can execute the flow action, thereby enforcing the desired level of access control.References: Pega Community documentation on privileges, roles, and access groups.