How to print warning messages in MIGO transcation

Question

Dear Guru's
While iam doing modification in userexit(ZXMBCU02) for MIGO. i have to get the warning message.
if i maintain the message type warrning it is not getting in the pop-up window. if i maintian the same
message type in Error mode.. iam getting that in the pop-up window. so can any one help me.
i tried with this code:
if i_mseg-bwart = '101' or
   i_mseg-bwart = '105'.
  clear: lv_bsart,
         lv_mwskz,
         lv_mwskz1.
  select single  bsart
    from  ekko
    into  lv_bsart
   where  ebeln = i_mseg-ebeln.
  select single  mwskz
    from  ekpo
    into  lv_mwskz1
   where  ebeln = i_mseg-ebeln
     and  ebelp = i_mseg-ebelp.
  if sy-subrc = 0.
    select single mwskz
      from zmm_taxcode_v0
       into lv_mwskz
       where bukrs = i_mseg-bukrs
         and bsart = lv_bsart.
    if sy-subrc = 0.
      if lv_mwskz1 = lv_mwskz  .
        message w000(8i) with 'PO contains' lv_mwskz
          'Tax code, Capture Excise invoice, then do MIGO'.
      endif.
    endif.
  endif.
endif.
Thanks and Regards
Gsana

Answer 1

Hi,
The solution is to call the form naco_log of the standard program sapfm07r :
PERFORM naco_log IN PROGRAM sapfm07r
USING 'W' '8i '000'....