Sending reduced IDOC from XI to R/3 with nodata markers

Question

Hi !
I need to update a VERY FEW Vendor fields data in R/3 from XI (FILE-XI-IDOC). I'm using the standard IDOC type CREMAS04 (I need to update fields of the E1LFBWM segment...withholding tax fields).
The problem is, that if I disable the not needed IDOC fields in the XI message mapping, when the IDOC reaches R/3, it blanks all the fields that were empty as result of the mapping...I verified it using XI and using the IDOC test tool (we19). For example, if the vendor had data in fields such as "salutation", "phone number", etc. after the IDOC processing, those fields change to BLANK.
One solution is to send the NODATA marker ("/") in those not needed fields, and that works!!!!...<b>BUT</b>, there are hundreds of IDOC fields.
I made a reduced IDOC type, based on CREMAS, enabling only the segments and fields needed, but tnx-WE19 and XI keep sending blank data in the not needed fields instead of the NODATA marker.
How could I send by default, the NODATA marker ("/") to all the fields NOT mapped or disabled, without having to map each field manually ?!?!?
Should XI send those fields as "/", or the R/3 should detect that the incoming IDOC is a reduced IDOC type, and complete all the not existing fields with NODATA ??
The goal is to update some data, and not overwrite with blanks, those fields that should remain untouched.
Thanks !!
Matias.

Answer 1

Matias
Is ur intention /equirement to send the NODATA for the rest of the IDOC elements or just send the reduced IDOC for the required sender elements..
if it is only for sender file elements, as sravya said Note 709400 describes
The integration repository provides a new function: "export reduced XSD" to reduce the XML schema of an IDoc.
To use this function in the mapping tool, proceed as follows:
1) Open the relevant IDoc in the object editor of the XI Repository.
2) In the menu "Tools", select the menu option "Export reduced XSD".
3) Assign a file name in the subsequent dialog box and save the data on the hard disk of your local PC.
4) Use this exported file in the message mapping instead of the IDoc by using the function "Import XML or XSD" in the mapping tool to select the source or target message. So you must use this function to import the reduced XML schema stored under
3) of the IDoc in question, and use this XML schema instead of the complete IDoc.
Note: The XML schema generated using the function "export reduced XSD" does not contain the full information in the repository on the IDoc and should only be used for the mapping.
option2: if you want to send the NO DATA, you got to develop UDF in Java or XSLT..
Here is a sample Java code:
obj = inputModuleData.getPrincipalData();
msg = (Message)obj;
XMLPayload xmlpayload = msg.getDocument();
DocumentBuilderFactory factory;
factory =DocumentBuilderFactory.newInstance();
DocumentBuilder builder = factory.newDocumentBuilder();
// parse the XML Payload
Document document = builder.parse((InputStream)
xmlpayload.getInputStream());
var x=document.getElementsByTagName("<rootnode>");
for(i=0;i<x.length;i++)
//the attlist variable will hold a NamedNodeMap
var attlist=x.item(i).attributes;
if (attllist.getvalue.equals("") {  //pseudo
attlist.setvalue("/"); //pseudo
document.write(att.value + "<br />");
Good luck
Thanks-Gopal
Message was edited by:
        gopal srinivasan