Diagnosis
A volume correction factor procedure that requires calculation ofcompressibility and/or supercompressibility through user exit
EXIT_SAPLEA54_001 is active for the specified register. In thiscase, however, the value could not be calculated because return tabley_table_compr_factors is implausible. It contains table entries havinga calculated compressibility or supercompressibility of zero.

Procedure
First analyze the cause of the termination in your user-defined userexit. Inform the person who is responsible for programming the userexit.

The person responsible for the program should note the following:
In the IS-U menu, choose Billing execution -> Billinganalysis.
Choose Settings -> General, then set the Debugging on
indicator.
Start a billing simulation with the affected contract. Enter TGHUEXITin the Breakpoint at field.
You branch immediately to the point where your user exit is called, andyou may be able to localize the error in debugging.