How to change the subtransaction of a transferred item in Invoicing?

Question

Hello guys!
I have the following question and I hope you could be able to answer.
In Invoicing, we select all the open payment we received from a customer and we include them in the Account maintenance line of the Print document. In some cases the amount of the payments is higher than the amount of the consumption and this leads to a transfer posting of the amount of the overpayment.
For example:
received payments
================
100,00EUR
100,00EUR
100,00EUR
consumption for the billign period
==========================
150,00EUR
The transfer document will contain the following items/subitems:
====================================================
item      subitem         amount          clearing status      main transaction        subtransaction
0001           000      50,00EUR                                        0250                          0010
0001           001      50,00EUR                      9                0250                          0010
0001           000     100,00EUR                                        0250                          0010
My question is - is there an event which can be used to change the subtransaction for a subitem?
I checked and tested event R418 but it can be used to change the subtransaction only for an item.
Thanks a lot in advance!
Kind regards,
Mariya

Answer 1

Hi ,
First of all the Event R418 as you have mentioned have the structures FKKKO and FKKOP .
In FKKKO you will not get the sub item and in FKKOP you will get the sub itmes .
Before the process gets in to Event R418 it has only 1 line item and hence you are facing the problem .
If you have multiple line items getting in to the FM then you can build the logic based on the Import date that is passed in structure FKKOP .
Else try for the function module FKK_OPEN_ITEM_SPLIT , in R418 where in you can split the document if you are having only 1 entry in FKKOP.
Kindly check and revert back with your findings .
Regards ,
Dewang