1. SAP Fieldglass Help Portal
"Proxy Management": The documentation explicitly states
"Proxy roles are associated with user roles to determine which roles can serve as a proxy for another role. For example
the Administrative Assistant role can be associated with the Hiring Manager role. This means that any user with the Administrative Assistant role can be a proxy for any user with the Hiring Manager role." This directly supports the concept of selecting roles that can serve as proxies for another role.
2. SAP Learning Hub
Course TFG60 - SAP Fieldglass Services and External Workforce
Unit: User and Company Structure: This course material details the configuration of user roles and their associated permissions and settings. In the section on advanced user management
it describes how proxy roles are linked to primary user roles to establish a framework for delegation
reinforcing that the association is a role-to-role definition.