BAPI_ACC_DOCUMENT_POST cannot post to posting key 25

Hi all,

How do I post to posting key 25?

I am checking for posting key = 25 then set the relevant gl account number.

However I got the wrong result in FB03. It is automatically set to posting key 40 instead.

Anyone have any idea??

gw_accountgl-bus_area = 'RFBU'.
    gw_accountgl-doc_type = 'ZP'.
    gw_accountgl-itemno_acc  = g_doc_count. "g_doc_line.
*    gw_accountgl-gl_account  = gw_post_rec-saknr.
*    gw_accountgl-vendor_no   = '1001941'.
    IF gw_post_rec-bschl = '25'.
*      gw_accountgl-gl_account  = space.
      IF gw_post_rec-gsber = 'RDF'.
        gw_accountgl-gl_account  = '561004'.
      ELSE.
        gw_accountgl-gl_account  = '561002'.

      ENDIF.
*      gw_accountgl-vendor_no   = '1001941'.

    ELSEIF gw_post_rec-bschl = '50'.
      IF gw_post_rec-gsber = 'RDF'.
        gw_accountgl-gl_account  = '561004'.
      ELSE.
        gw_accountgl-gl_account  = '561002'.