Validate plant and material on selection screen

Question

Hi all,
I want to validate plant and material on selection screen. More over I need to validate the combination of that also (i.e plant based materials). Individually I made the validations, but combination I didn’t get it.
For your information both are select-options, please reply me if you have an idea. The table to get the relationship is KEKO. I have the below code for parameters, but I require code for select options.
SELECT MATNR WERKS FROM KEKO UP TO 1 ROWS
INTO (KEKO-MATNR, KEKO-WERKS)
WHERE MATNR = P_MATNR AND
WERKS = P_WERKS.
IF SY-SUBRC <> 0.
MESSAGE E023 WITH 'COST ESTIMATE NOT FOUND FOR '
P_MATNR P_WERKS 'COMBINATION'.
ENDIF.
ENDSELECT.
<b>Note: I need to calidate on KEKO only..</b>
Surely I will reward you.
Thanks in Advance,
Raghu.

Answer 1

Hi rag ,
The following code will works .... i have practically used in my report.
Local data declaration
  DATA: l_material TYPE matnr.
Validation check for material
  IF s_matnr IS NOT INITIAL.
    SELECT matnr          "material
      FROM mara
        UP TO 1 ROWS
      INTO l_material
     WHERE matnr IN s_matnr.
    ENDSELECT.
    IF l_material IS INITIAL .
    Invalid material entered .
      MESSAGE e136.
    ELSEIF s_mawerk IS NOT INITIAL.
      CLEAR l_material .
    Validation check for material exists in plant
      SELECT  matnr        "material
        FROM marc
        UP TO 1 ROWS
        INTO l_material
       WHERE matnr  IN s_matnr
         AND werks IN s_mawerk.
      ENDSELECT.
      IF sy-subrc NE 0 .
      Invalid material entered for the plant.
        MESSAGE e130.
      ENDIF .
    ENDIF.
  ENDIF.