Create a Document with an original file stored on application server

Question

Hello,
I start with document managment system : i am able to create new document (CV01N) manually, add a local file and check-in this file.
Now we need to store file which are stored on the SAP Application Server.
Firstly, in the GUI of transaction CV01N, i don't know how to browse file on application server. All files i can't attach as original, are files i can access from my computer.
Is it possible to access also on application server files ?
Moreover, i have to define function module which have to
- Create a document (DMS)
- Attach an orginial file which is stored on application server
- Check-in the file
This function module will be called from a web application
I define this kind of function and run it correctly with a local file (stored on my computer) : i call BAPI "BAPI_DOCUMENT_CREATE2" and "BAPI_DOCUMENT_CHECKIN2"
But i don't how to do with a file stored on application server. I see also note 504692 and try a program like ZZUZTEST_TEST_CHECKIN which use FM CVAPI_DOC_CHECKIN but it return an error Error uploading  E:\usr\sap\TD1\DVEBMGS00\data\FACTURE.txt" (this path and file exist on application server and is really the file i want to checkin)
Please could you confirm what i search, is possible or not.
If possible, could help me with some explanations and guidelines and perhaps a sample ?
Thank you very much.
Regards,
Eric
The function used
FUNCTION Z_TEST_CHECKIN.
Checkin the first original of a document info record *
from the application server and/or in the background *
  data   : w_host like BAPI_DOC_AUX-HOSTNAME.
  data: lf_line(255).
  data: ls_draw like DRAW,
        ls_message_cvapi like messages,
        lt_files_cvapi type standard table of CVAPI_DOC_FILE,
        lt_files_cvapi_header like CVAPI_DOC_FILE.
  data: lt_originals LIKE cvapi_doc_file OCCURS 0 WITH HEADER LINE,
        vo_originals LIKE cvapi_doc_file OCCURS 0 WITH HEADER LINE.
  ls_draw-dokar = 'ZFT'.
  ls_Draw-doknr = '0000000000000004500000032'.
  ls_Draw-dokvr = '00'.
  ls_Draw-doktl = '000'.
Read Originals contained in the document info record
  CALL FUNCTION 'CVAPI_DOC_GETDETAIL'
    EXPORTING
      pf_batchmode    = 'X'
      pf_hostname     = ' '
      pf_dokar        = ls_draw-dokar
      pf_doknr        = ls_draw-doknr
      pf_dokvr        = ls_draw-dokvr
      pf_doktl        = ls_draw-doktl
      pf_active_files = 'X'
    IMPORTING
      psx_draw        = ls_draw
    TABLES
      pt_files        = vo_originals
    EXCEPTIONS
      not_found       = 1
      no_auth         = 2
      error           = 3
      OTHERS          = 4.
  IF sy-subrc <> 0.
    WRITE 'Error returned by CVAPI_DOC_GETDETAIL'.          "#EC NOTEXT
    EXIT.
  ENDIF.
Check if we can really access the file from the application server
  read table vo_originals index 1.
  open dataset vo_originals-filename for input in text mode ENCODING DEFAULT.
  if not sy-subrc is initial.
    message e500(26) with vo_originals-filename 'not found'.
  endif.
  read dataset vo_originals-filename into lf_line.
  if not sy-subrc is initial.
    message e500(26) with vo_originals-filename 'read error'.
  endif.
  lt_originals             = vo_originals.
  lt_originals-STORAGE_CAT = 'SAP-SYSTEM'.
  append lt_originals.
  w_host = sy-host.
  CALL FUNCTION 'CVAPI_DOC_CHECKIN'
  EXPORTING
  PF_DOKAR = ls_draw-dokar
  PF_DOKNR = ls_draw-doknr
  PF_DOKVR = ls_draw-dokvr
  PF_DOKTL = ls_draw-doktl
PS_DOC_STATUS =
  PF_FTP_DEST = 'SAPFTPA'
  PF_HTTP_DEST = 'SAPHTTPA'
*PF_HOSTNAME =  w_host
PS_API_CONTROL =
PF_REPLACE = ' '
PF_CONTENT_PROVIDE = 'SRV'
  IMPORTING
  PSX_MESSAGE = ls_message_cvapi
  TABLES
  PT_FILES_X = lt_originals
PT_COMP_X =
PT_CONTENT =
  IF ls_message_cvapi-msg_type CA 'EA'.
    ROLLBACK WORK.
    MESSAGE ID '26' TYPE 'I' NUMBER '000'
    WITH ls_message_cvapi-msg_txt.
  ELSE.
    COMMIT WORK and wait.
  ENDIF.
ENDFUNCTION.

Answer 1

This is a bit tricky. I spent lots of hours about this .
You have to set PF_HOSTNAME with your name of your AS and gives the path to the file on the server.
You wrote
*PF_HOSTNAME = w_host
But beware: if you have more thän one AS you have to fix one AS for upload or you have to find the servers name of the file. A better way can be to share one folder by each AS.
You also have to decide between HTTP or FTP.
You wrote:
  PF_FTP_DEST = 'SAPFTPA'
  PF_HTTP_DEST = 'SAPHTTPA'
You must define only one ! Then you have to check your settings in SM59 about working right.
Pls rate, if this was helpful.
Regards,
Markus