Advanced Customization > Business Logic Customization > Packages Customization > Identifying Users in Context Replication and Activating Replicated Users > Limitations
  
Limitations
Each delegate implementation provided OOTB is only for use with a specific delegate selector context. The designated selector context is described in Solution.
Although the PrincipalMatchDelegate interface defines the contract for all WTPrincipal sub-classes, support for service delegate-based matching is currently only available with WTUser processing and only in the scenarios described here. Support for other sub-classes (WTGroup, WTOrganization) in these scenarios is not yet available via delegate-based processing. These are intended for future use.