Diagnosis
If a conversion factor is used for a gas procedure, then the unit ofmeasurement before conversion with the volume correction factor (whichis defined in the volume correction factor procedure) must match theunit of measurement before conversion with the calorific value (whichis defined in the calorific value procedure).
The gas procedure usually checks to make sure this requirement is met.

System Response
Error message

Procedure
Check your gas procedure; if it is already in productive use, contactSAP before you make any changes to it.