Diagnosis
You want to the delete measured pressure &v1& from billing class &v2&.However, volume correction factors already exist with billing class &v2&
. When these volume correction factors were created, the system checkedthat the upper limit of the measured pressure interval was smaller thanthe maximum measured pressure of this billing class. If you delete ameasured pressure, inconsistencies can occur.

System Response
The measure pressure cannot be deleted.

Procedure
First of all create all measured pressures and construct the gasprocedure.
You can only delete a measured pressure for a billing class that is inuse directly in the database.