Cheque PLD ColSum ignores Credit memo

Hi,

SAP 2007A, SP01, PL05

In my cheque PLD for cheque, if the cheque has several invoices and a credit memo, the ColSum figure totals the invoices but does not include the Credit memo figure. The repetitive row has System Variable 97 for Net Amount and the total on stub has a ColSum referring to that field.

As a result, the ColSum total is higher than the cheque amount by the figure of the credit memo.

Thanks.