SAP Message RSO255 - Where-used list for object &1 (&2) not yet implemented

Diagnosis
In order to specify the objects dependent on object &v1& of type &v2&,or to perform a where-used list, function module &v3& must beavailable. However, function module &v3& is not yet available in thesystem.

System Response
Could not find any objects that are associated with object &v1&.