How to change delivery date (LFDAT) in me57 item data

Question

hi ,
While  Creating purchase order  (me57)  . on the basis  of info rec   . i want to change  delivery date  by
passing  info rec to table eine and get field aplfz  .
then adding  aplfz to sysdate    and pass it to 
Delivery date   .
i have done this using USER EXIT  EXIT_SAPMM06E_016
and modified table  teket  with field eindt   but still in screen fields  it shows  old date value   .
After Debugging i found that  that  it passes value from internal table ETT[] .
how to modify internal table ETT[]  which is used to display data on screen   .
regards
Deepak.
Edited by: Deepak Dhamat on Jun 8, 2011 8:32 AM
Edited by: Deepak Dhamat on Jun 8, 2011 10:35 AM

Answer 1

hi ,
i have  implemented BAdi  me_process_po_cust
for changing Delivery date   .
method if_ex_me_process_po_cust~process_item .
data : eeind_dt type eket-eindt ,
         t_aplfz type eine-aplfz ,
         delivery_dt(10) type c.
  ls_item = im_item->get_data( ) .
if sy-tcode = 'ME21N' .
    select single aplfz into t_aplfz  from eine
      where infnr  = ls_item-infnr .
    if sy-subrc = 0 .
      if t_aplfz is  not initial  .
        eeind_dt  = sy-datum  + t_aplfz  .
        concatenate  eeind_dt6(2) eeind_dt4(2)  eeind_dt+0(4) into delivery_dt .
      endif.
    endif.
    ls_item-eeind = delivery_dt .
    call method im_item->set_data
      exporting
        im_data = ls_item.
    clear : delivery_dt  ,t_aplfz  ,eeind_dt .
  endif.
regards
Deepak.