Diagnosis
A gas procedure is to be carried out for the register. For thisprocedure, the volume correction factor component is determined by aspecial procedure that uses the register relationship "volumecorrection factor calculation".
The specified register is linked to the operation code "Registercontains standard volume" via the register relationship.
No or not enough meter reading results could be found for the specifiedregister and period; these are needed to determine the standard volume.

System Response

Procedure
Check the meter reading results for the period in question. Enter themissing meter reading results, or correct existing unbillable metermeter results.
Billable meter reading results should be available for the specifieddates.
If the meter reading results are correct, then an internal error mayhave occurred. In this case, contact SAP.