REPORT  zsr_test.

PARAMETERS: p_matnr TYPE mara-matnr,
            p_werks TYPE marc-werks,
            p_lgort TYPE mard-lgort.

AT SELECTION-SCREEN ON p_werks.

  IF p_werks IS INITIAL.
    MESSAGE 'Üretim Yeri Giriniz' TYPE 'E'.
  ENDIF.
 
 
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