Hello Renhua,
A residual item results when a payment is made for less than the actual amount outstanding in the invoice. You clear the original open item, and the system posts a new open item. This new open item is for the same amount as the original open item minus the amount paid.
Procedure
To enter a residual item, proceed as follows:
- On the Process open items screen, choose the Res. items tab.
- In the Residual items column, enter the amount of the residual item. You can assign one or more reason codes and reference information about the business partner to the residual items. For each reason code, you can define whether a new item is to be posted to the business partner account (outstanding receivable), or if the difference is to be cleared. Depending on the reason code you specify, you can send the relevant payment notice to your business partner.
- To go back to the standard screen for editing open items, choose the Standard tab.
And reason code is not copied from the original document and you need to assign the appropriate reason code while making the residual payments.
Please configure the reason codes in OBBE T code ( in company code level) and assign the GL accounts to reason codes in OBXL t code for Automatic posting( in chart of accounts level).
I hope it helps!
Thanks & Regards,
Lakshmi S