Assignment field update for FI document.

Hi Experts,

I have a question on assignment field update for FI document.

When my client makes payments (F111), the double entry is as below:-

Line Item 1 Dr Clearing

Line Item 2 Cr Bank u2013 Outgoing

After the payment is done, the user executes t-code FCHU to update the cheque number in Bank Outgoing (Line 2) assignment field.

My client also wants to update the assignment field in Line Item 1 with the cheque number as well.

Is there any standard or alternative procedure (User Exit or BADI) to update the assignment field with the cheque number in Line Item 1. Or else can we copy the RFCHKU00 program (t-code FCHU) and add some logic to update the assignment field in line 1 as well.

Thanks in advance.

Edited by: Mar 24, 2011 4:09 AM