F.17: SAPscript form F130_CONFIRM_01: Sum up amount per Doc-Number

Dear experts,

I have a requirement to print the outstanding amount per customer as only one row in transaction F.17/ Program SAPF130D/ SAPscript F130_CONFIRM_01.

As per standard behaviour, the Vendor Balance conf letter prints out multiple lines per Doc-Number. For the customer it is very hard to get to the final outstanding amount, so we want to only print one amount per Doc-Number in the formular.

I think one has to modify the print program SAPF130D in order to only send the relevant data to the SAPscript form. But I have (after hours of research) no idea where to sum up the amounts and even no idea where the printed data can be catched in the program.

Could you please give advice how to manipulate data in this particular case.

Thanks a lot guys!

Ben