Define your parameter or selection-option field like so using the addition MODIF:
SELECT-OPTIONS s_pltyp FOR a606-pltyp NO INTERVALS NO-EXTENSION MODIF ID prc. In your code, this could be your logic: AT SELECTION-SCREEN OUTPUT. * User clicks the checkbox 'pipe' IF NOT pipe IS INITIAL. * Don't allow input for these fields LOOP AT SCREEN. CASE screen-group1. WHEN 'PRC'. screen-input = '0'. screen-output = '0'. screen-invisible = '1'. MODIFY SCREEN. ENDCASE. ENDLOOP. ENDIF.
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Kenneth Moore asks:
Have you run into issues setting up or modifying the SAP ABAP selection screen?
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