Are all external groups hierarchy enabled?
No. In order for administrators to leverage the different groups already utilized within Oracle Applications (such as, Roles and Positions as defined in Oracle Human Resource Application, Group Parties as defined in the Trading Community Architecture (TCA), and Resource Groups as defined in Resource Manager), the owning applications must support the incremental synchronization of their group membership with the Workflow Directory. Additionally, the owning applications should register their group with the Workflow Directory as hierarchy enabled. Once this occurs, clients can assign roles and responsibilities to the groups through role inheritance.