SAP Message RSPLS126 - Aggregation level &1: IObj. &2 requires IObj. &3 (exception aggregation)

Diagnosis
You have tried to select key figure &V2& in the definition ofaggregation level &V1&. However, &V2& is a key figure with exceptionaggregation on characteristic &V3&. &V3& is not currentlyincluded in aggregation level &V1&.

System Response
The definition of aggregation level &V1& is inconsistent.

Procedure
Either include characteristic &V3& in the aggregation level or removekey figure &V2& from the aggregation level.