GL Line Item with Tax Base Amount Posting

Dear Expert,

I have a GL account with tax and CO object. And, I am using BAPI_ACC_DOCUMENT_POST to do the GL posting. I would like to post the GL line item with tax base amount as it will show in FB03 line item, the posting is successful but no base amount is in GL line item in FB03. (I can manually post it in Tcode FB50).

Any idea on this and what is the problem? Appreciate if can help..

Thank you.

Best Regards,

Weng