SAP Message BRAIN121 - &1 is not a valid key figures for InfoProvider &2

Diagnosis
Customer enhancement RSR00002 or the implementation of BAdIRSR_OLAB_BADI delivers &V1& as the key figure to be calculated. &v1& is,however, not a valid key figure for InfoProvider &V2& or &v1& referencesthe key figure &v3&, In this case it is sufficient to calculate thebasic key figure l &v3& in the exit.

System Response
The information from &V1& is ignored.

Procedure
Check the exit.