SAP Message AH826 - Gas proced. &1 VCF proced. &2: gas pressure area missing

Diagnosis
You have selected the specified volume correctionfactor procedure as the gas procedure. According tothis procedure, the measured pressure or the gas pressure must bedetermined by the gas pressure area.

System Response

Procedure
Specify a gas pressure area, or choose a gas procedure for which thevolume correction factor procedure determines the measured pressureautomatically (and not via the gas pressure area).