财务FB08冲销BAPI

      CALL FUNCTION 'CALL_FB08'
        EXPORTING
          i_bukrs      = is_req-bukrs
          i_belnr      = is_req-belnr
          i_gjahr      = is_req-gjahr
*         I_BVORG      = ' '
          i_stgrd      = is_req-stgrd
*         I_VOIDR      =
          i_budat      = lv_budat
          i_monat      = lv_monat
*         I_XSIMU      = ' '
          i_update     = 'S'
*         I_MODE       = 'N'
*         I_NO_AUTH    = ' '
*         I_BLDAT      =
*         I_VATDATE    =
*         IMPORTING
*         E_BUDAT      =
*         E_MONAT      =
*         E_XSOFO      =
        EXCEPTIONS
          not_possible = 1
          OTHERS       = 2.