Diagnosis
Although the attribute SAP_BUSINESSPARTNERGROUP actually represents abusiness partner group, you have to choose a business partner addressfrom central address management from the workflow container for thebinding rather than a group. This is because the business partner groupis a classification used for routing and is otherwise not used withinthe workflow.

System Response
The system then determines the business partner group independentlybefore transfer to the router.

Procedure
Ensure that the internal router is also assigned to the scenario andreceives data. The internal router is required to determine thebusiness partner groups for a business parter. If it does not receivethis data when the scenario is downloaded, the determination cannottake place.