SAP Message AJ555 - You cannot use a weighting key with the "Last value" procedure

Diagnosis
You have selected the special procedure Last value forcalculating the volume correction factor and the calorific value. It isnot possible to calculate an average in combination with thisprocedure.
This means that you cannot enter data in the Weighting keyfield. However, it is possble to create a conversion factor for thevolume correction factor and the calorific value.

Procedure
INCLUDE ISU_KORR OBJECT DOKU ID TX