Separate Lines debited to Customer Account

Question

Dear All
Kindly go through the following details and guide me :
My Client is a Project Based Organisation. So for every project they take advance as Down Payment.
For example if the Project value is 1.0 Lac INR and as per agreement Down Payment is 10%, then Client takes the down payment of 10000.
Now client started supplying the material to its Customer (we use delivery based billing). The requirement is that while doing the invoicing of a particular line item, the down payment should be adjusted, for Example if the Base Price is = 5000, and Sales Tax = 50, the required Accounting Entry should be as follows :-
Required A/C Entry    
Customer      Dr     4950
Customer     Dr         50 (adjustment against advance)
Customer     Dr         50 (Tax)
Revenue     Cr     5000
Tax Payable     Cr     50
By using the Installment Payment Terms, I am able to get the following accounting entry:
Customer      Dr     4995
Customer     Dr        505 (adjustment against advance)
Revenue     Cr     5000
Tax Payable     Cr     50
So system is basically adding the Tax Value and Basic Price and then as per the terms in Installment Payment Terms dividing the value as per the percentage maintained (here it is 90% and 10%) in payment terms.
So client reuirement is to send separate line for accounting entries which is posted to Customer G/L where revenue amount should be divided as per the Installment Payment Terms.
If further clrification required kindly let me know.
Is it possible to achieve the above said requirement, and if Yes, then Please guide me.
Thanks
Amitesh Anand

Answer 1

Hi
Resolved by using the Functional Module : EXIT_SAPLV60B_007.
Thanks
Amitesh Anand