Gas Billing Calorific value

Hi All

while entering fixed calorific values in T Code: EA70/ EA71 I am getting the following error

Fixed CV is not between 9.000000 and 13.000000

Message no. AH029

Diagnosis

You have specified a value that is outside the permitted limits. This can cause invalid quantities or bill amounts in billing.

where these values defined or is it hard coded in SAP standard program

please advise....

In advance thanks....KK

Edited by: KK on Nov 11, 2008 11:15 PM