Print Purchase Order Document

Question

Hi,
is there a function, that lets you print a purchase order from the system, if not , what would the best way of doing this be?
I did try
Function 'ME_DISPLAY_PURCHASE_DOCUMENT'
which works , I belive , if the document has been printed before, but not if it has not, am I correct?
Once printed I need the spool no.
Thanks

Answer 1

Create a Z Function module using the code below.
One import parameter for PO num say I_PO.
You can have few exceptions.
Declare NAST Table in the global data of the function group.
Replace 'XXXX' with proper values.
  clear nast.
Raise exception if there is no delivery no.
  IF I_PO IS INITIAL.
    RAISE Exception.
  ENDIF.
Fill in the NAST header line for this label.
  CLEAR NAST.
  NAST-OBJKY = I_PO.
  NAST-LDEST = 'XXXX'.
  NAST-SPRAS = 'EN'.
  NAST-TDSPRAS = 'EN'.
  NAST-DIMME = 'X'.               " Print Immediate' flag
  NAST-DELET = 'X'.            " Release after print'
  NAST-ANZAL = 1.                      " Specify one copy
  NAST-NACHA = 1.                     " output to printer
  NAST-VSZTP = 4.
  NAST-KAPPL = 'XXXX'.
  NAST-KSCHL = 'XXXX'.
  NAST-EDIKEY = 0.
  NAST-MANUE = 'X'.
  NAST-VSTAT = '0'.      " set status = not yet processed
  NAST-ERUHR = SY-UZEIT.
  NAST-ERDAT = SY-DATUM.
  NAST-USNAM = SY-UNAME.
Insert entry into NAST
  INSERT NAST.
  COMMIT WORK AND WAIT.
Call sap STANDARD routines to process the message request
  LW_SUBRC = 999.
  PERFORM EINZELNACHRICHT(RSNAST00)
                                   USING LW_SUBRC.
  IF LW_SUBRC <> 0.
    RAISE Exception.
  ENDIF.
Thanks,
Rajesh.