Which user role can access the most privileges in managing Source Groups?

The role that can access the most privileges in managing Source Groups is the Admin Only role. This user role typically has elevated permissions that allow for comprehensive management and oversight of various aspects related to Source Groups within Marketing Cloud. Admins often have control over all settings and configurations, enabling them to create, edit, and delete Source Groups, as well as manage user access and permissions associated with these groups.

While the Super User role may also have substantial privileges, the Admin role is usually equipped with the highest level of administrative capabilities, ensuring they can implement and manage changes effectively across the platform. Other roles, such as Full User and Basic User, are designed to have more limited access, focusing on specific functions rather than comprehensive management capabilities. This hierarchy of user roles is important for maintaining security and operational efficiency within the Marketing Cloud environment.