Do i Can able to Enhancement OBB8 More than 3 feilds of Payment Terms....?

[DarshanShah]

How to create for more than 3 instances, say 4 or 5. Because standard SAP provides only for 3. Let me brief you as below :

- I have to create 5 payment Terms in OBB8

like i create 5001 (clicking as instalment) ; 5002 for 5% - 30 days ; 5003 for 4% for 60 days ; 5004 for 3% for 90 days and 5005 for Net 180 days.

- I assigned these 5002 to 5005 to 5001 with say 25% instalment each in OBB9.
- Now I assigned this 5001 payment term in the Vendor Master.
- Posted new FB60 invoices with say 01st Oct 09 as Document Date with say Rs. 30000/-
- Now, I have to make the payment to the Vendor on say 15th Nov 2019.
- So ideally I am eligible for a 4% discount on Rs. 25000/- since I am paying after 30 days and before 60 days.
- I am posting through F-53 with 15.11.2009 as the document data, and now the system is not calculating the discount for the first instalment of 25% instalment and for the next 25% the discount is calculated @ 4% on 25% only.
- Now my requirement is to calculate 4% discount in Rs. 30000/-.
Can anyone suggest the required approach?