We are implementing the service plan scenario in our project. Service plan products would be downloaded from ECC into CRM under product hierarchy R3PRODSTYP/category MAT_SERV. Now, here the standard set-type SERVICEPLAN required for using the Service Interval template in service plan product is not available under category MAT_SERV. So, we used a Z set type and assigned the attribute CYCLE_KEY(required for the necessary processing of the service plan). This Z set type is assigned to the standard category MAT_SERV. But while creating the service plan, the service interval template is not getting determined from the service plan product. Is there any way by which the standard set-type SERVICEPLAN can be made available under MAT_SERV category?