PO Values reset to Original Value even after Change in ME21N/ME22N

Question

Hi Friends,
I have added u2018Additional datau2019 tab with 4 fields in PR(me51n) and PO(me21n) in corresponding screens in PO- SAPLXM06    0111, PR- SAPLXM02    0111. it is working fine.
But when I create PO from PR, cust fields data has coping into PO cust fields. Development done in FM: EXIT_SAPMM06E_016. with the below code.
ekpo_ci-zchkbox = i_reban-zchkbox.
ekpo_ci-zpayfromdate = i_reban-zpayfromdate.
ekpo_ci-zpaytodate = i_reban-zpaytodate.
ekpo_ci-zquonumb = i_reban-zquonumb.
After copy, user wants to change data in this PO cust fields, but it is resetting with PR values.
i also copying from contract also for ekpo_ci-zquonumb = i_kekko-zquonumb, but it is also same probelm.
How to identify wether it is copying or changing data in PO?
please suggest me.
Srinu
Edited by: srinu rao on Nov 11, 2010 11:08 AM
Edited by: srinu rao on Nov 12, 2010 5:12 AM

Answer 1

Hi Md Faheem ,
In that function module, we can import data into DB which ever data on cust screen fields. my question is In PBO user can able change copied values from Contract/ PR.
I was implemented the logic in this way, it is working fine.
  IF I_KEKPO-EBELN NE 0.
     SELECT SINGLE zquonumb FROM ekko  INTO lv_zquonumb WHERE ebeln = I_KEKPO-EBELN.   "i_ekko-konnr.
    IF LV_ZQUONUMB NE EKPO_CI-ZQUONUMB.
      IF i_ekko-bstyp EQ 'F'.
         IF ekpo_ci-zquonumb IS INITIAL.
           ekpo_ci-zquonumb = lv_zquonumb.
         ENDIF.
      ENDIF.
    ENDIF.
  ENDIF.
Thank you for suggestion.
Srinu