Matchcode for Dynpro field

matchcode.abap

* At dynpro logic, after PAI
PROCESS ON VALUE-REQUEST.
  FIELD zconcent_k-folio MODULE matchcode_module.



* wherever you want
MODULE matchcode_module INPUT.
 DATA: t_return LIKE ddshretval OCCURS 0 WITH HEADER LINE.
 

  DATA: BEGIN OF t_value OCCURS 0 ,
     field1 LIKE ZDATATYPE,
     field2 LIKE ZDATATYPE.
  DATA: END OF t_value.

* fill your t_values table
t_values-field1 = 'something'.
t_values-field2 = 'something else'.
append t_values.

CALL FUNCTION 'F4IF_INT_TABLE_VALUE_REQUEST'
      EXPORTING
        retfield        = 'FIELDNAME'
        value_org       = 'S'
      TABLES
        value_tab       = t_value
        return_tab      = t_return
      EXCEPTIONS
        parameter_error = 1
        no_values_found = 2
        OTHERS          = 3.

    IF sy-subrc = 0.

      READ TABLE t_return INDEX 1.

      MOVE t_return-fieldval TO YOUR_DYNPRO_FIELD.

    ENDIF.