Withholding Tax

Dear All The ABAP Gurus,

I have made a Z Program for posting multiple F-47 Documents having multiple Special G/L . It is working fine . For this I have used BAPI_ACC_DOCUMENT|_POST and in that I have also used EXTENSION1 for updating the PO History also. All this is working fine when I have to post the documents without withholding Tax.

The issue is that how to post the documents for which withholding tax is to be deducted. In the BAPI there is EXTENSION2 table which is calling BADI. Should I also use BADI to resolve it. I don't know how to achieve this. Also I have used ACCOUNTWT table of the BAPI but I could not achieve success.

How to resolve this issue?

Thanks In Advance,

Bharti Jain