BAPI post

Hi

I am testing BAPI_ACC_DOCUMENT_POST.

When I do it using SE37 I get only message 605 –‘Document posted successfully:….’.

When I do it using my ABAP-program I have the same message.

No update in BKPF, BSEG (although I call BAPI_TRANSACTION_COMMIT in my ABAP)

My questions are:

Do I get real POSTING using test (se37) – or only simulation?

What do I have to add in my ABAP-code to POST my document?

Thanks for your time.

Oleg.