SAP Message BRAIN204 - &1 &2 cannot be ready for input; &3 has ref. charac. for exception &4

Diagnosis
The basis key figure &V3& of this selection element &V1& &V2& has anexception aggregation. The reference characteristic &V4& is however notin the ALV, or is not assigned in the MultiProvider.

System Response
The ready to enter status of &V1& &V2& is deactivated.

Procedure
Check the query definition.