Sometimes file processor reports need give support to the users, to browse files on the ABAP Server. The below snippet gives a solution for this, tested on ECC systems. The user can use a search help to trigger a dialog for browsing server files. Optional parameters are start folder and file mask.

TABLES: cffile.

SELECT-OPTIONS:
  s_files  FOR cffile-filename NO INTERVALS.

AT SELECTION-SCREEN ON VALUE-REQUEST FOR s_files-low.
  lcl_helper=>browse_server_file(
*    EXPORTING
*      i_start_path = p_fname
*      i_filemask =  '*.xml'
    CHANGING
      c_path       = s_files-low
  ).

CLASS lcl_helper DEFINITION.
  PUBLIC SECTION.
    "! Browse file on OS level
    "! @parameter i_start_path | Start directory
    "! @parameter i_filemask | File Mask
    "! @parameter c_path | Chosen file
    CLASS-METHODS browse_server_file
      IMPORTING
        i_start_path TYPE clike OPTIONAL
        i_filemask   TYPE csequence OPTIONAL
      CHANGING
        c_path       TYPE clike.

ENDCLASS.

CLASS lcl_helper IMPLEMENTATION.

  METHOD browse_server_file.
    DATA:
      fullpath           TYPE string,
      last_backslash_pos TYPE i.

    TRY.
        "Value help for OS level file browse on ABAP server
        CALL FUNCTION '/SAPDMC/LSM_F4_SERVER_FILE'
          EXPORTING
            directory        = i_start_path
            filemask         = i_filemask
          IMPORTING
            serverfile       = c_path
          EXCEPTIONS
            canceled_by_user = 1
            OTHERS           = 2.

        IF sy-subrc <> 0.
          RETURN.
        ENDIF.
      CATCH cx_root.
        RETURN.
    ENDTRY.
  ENDMETHOD.

ENDCLASS.

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