IDoc related doubt .......Please see..

Question

Hi all,
What is message in Idoc? Please tell in layman terms. Is it part of the data records? Please point me to related files or threads.
Thanks,
Charles.

Answer 1

Hi,
The Message type are mornally assign to SAP document type (IDOC).  A message type represents a business function ( Purchase order data, Invoivce data etc). The technical structure of the message type is the IDoc type.
An <b>IDoc type</b> can be implemented for various "logical" <b>messages</b>; one message can also be assigned to different IDoc types (m:n relationship).
The message is defined by the values for <b>message type (required),</b> <b>message code</b> (optional) and <b>message function</b> (optional). These three fields belong to the key fields in the partner profiles, which are used, for example, to determine inbound processing. If the 'Message type' field is not maintained (e.g. in the case of a control record from Release 2.1, in which MESTYP did not exist), the IDoc Interface uses the value from STDMES (EDI message type).
<b>Example</b>                                                            
The message ORDERS (= message type) identifies purchase orders (outbound) and sales orders (inbound). 
Check transaction <b>WE81,</b> for Message type in SAP.
Also, follow this link for more infomation related to IDOC processing
http://help.sap.com/saphelp_46c/helpdata/en/72/c18ee5546a11d182cc0000e829fbfe/frameset.htm
Check this lin for information about "Distribution Using Message Types".
http://help.sap.com/saphelp_46c/helpdata/en/78/2174a351ce11d189570000e829fbbd/frameset.htm
Let me know if you need any other information.
Regards,
RS