BAPI name for Invoice Reversal

Hi folks,

I have to reverse a invoice document which which was created in F-02.

We are checking for a BAPI to do so and found BAPI_ACC_DOCUMENT_REV_POST will do the thing.

But i am confused while entering the input parameters as it asking about object key, object etc.

Could any body suggest me how to fill those.

Maually i am able to to do reverse by FB08. Is this the rite BAPI to reverse invoice created in F-02 ?

Thanks in advance,

Shyam.