BAPI_ACC_DOCUMENT_POST - How to generate tax items
I am trying to implement the posting of accounting documents via BAPI_ACC_DOCUMENT_POST, and struggling to get the tax postings to work properly.
The process requires me to produce the same outcome as a user manually posting the document via FB01 where tax items are automatically generated. So I need to confirm how to calculate and post the tax items.
I need more information on how to retrieve the data to pass to the ACCOUNTTAX parameter of the bapi and the mapping of the data to the ACCOUNTAX fields. And also the corresponding CURRENCYAMOUNT parameter, I am interested to know if I have to populate the base amount fields as well as the document amount field.