METHOD /iwbep/if_mgw_appl_srv_runtime~execute_action.
    DATA: ls_fnset TYPE zcl_zreact_app_mpc=>ts_fnimportset,
          et_fnset TYPE zcl_zreact_app_mpc=>tt_fnimportset,
          lv_user  TYPE sy-uname.

    DATA(lv_fnName) = io_tech_request_context->get_function_import_name( ).

    CASE lv_fnName.
      WHEN 'fnImportDemo3'.
        LOOP AT it_parameter ASSIGNING FIELD-SYMBOL(<fs>).
          IF <fs> IS ASSIGNED.
            IF <fs>-name EQ 'userName'.
              lv_user = <fs>-value.
            ENDIF.
          ENDIF.
        ENDLOOP.

        TRANSLATE lv_user TO UPPER CASE.

        AUTHORITY-CHECK OBJECT 'ZBTN'  FOR USER lv_user ID 'ACTVT' FIELD '02' .
        ls_fnset-hasAccess = abap_false.
        IF sy-subrc EQ 0.
          ls_fnset-message = lv_user && ' has access'.
          ls_fnset-hasAccess = abap_true.
        ELSE.
          ls_fnset-message = lv_user && ' has no access'.
        ENDIF.

        APPEND ls_fnset TO et_fnset.

        copy_data_to_ref( EXPORTING is_data = et_fnset
                          CHANGING cr_data = er_data ).

    ENDCASE.

  ENDMETHOD.