SAP BC Routing 
Routing Messages Using the Partner Manager
When the SAP Business Connector Server receives a call on the RFC server (Listener) that is not linked to a particular SAP BC Service, the SAP Business Connector Server sends the call to the Partner Manager. The Partner Manager receives:
IDocs and BAPI calls from an SAP Server or IDoc XML messages from any Web client
RFCs from an SAP server or RFC XML (XRFC) and
bXML messages from any Web client
When the Partner Manager receives a message via tRFC or an XML message that contains a TID (transaction ID), this message is registered in the Message Store. The recipient of the message is determined by Routing Rules. Routing Rules contain information about the sender, recipient, and message type. A message can be directed to:
An SAP Server (IDocs, RFCs, and BAPIs)
An SAP BC Service on a local or remote server
HTTP with a URL as the recipient
FTP with recipient
An e-mail recipient
Routing Messages Using the Partner Manager
