Microsoft .NET Server Solutions for the Enterprise

Sending an IDoc to BizTalk Server

This section describes the data flow of an IDoc from an SAP R/3 system to BizTalk Server.

A BizTalk Server specification (XML schema) must already exist for the IDoc to be sent to the SAP R/3 system. To generate a specification, see the section "Generating a BizTalk Server Specification Document."

The following illustration shows the process.

Transferring an IDoc from SAP to BizTalk Server

1. The SAP R/3 system delivers an IDoc to the SAP DCOM Connector.
2. The SAP DCOM Connector delivers the IDoc, along with a transaction identifier (TID), to the IDoc Handler component of the BizTalk Adapter for SAP.
3. The IDoc Handler component converts the IDoc to an IDoc delimited stream.
4. The IDoc Handler transfers the IDoc delimited stream to an MSMQ Queue.
5. BizTalk Messaging retrieves the IDoc delimited stream from MSMQ.
6. The IDoc data stream is validated against the BizTalk Server Specification document (XML schema).
7. An XML document is created and sent to BizTalk Server for any additional processing.

   Note   This process is initiated by the SAP R/3 system.

To confirm the transfer process

Look for a file in the folder on your BizTalk Server computer that was configured to receive files transferred from the R/3 system. Any files present have been received by the Adapter for SAP and validated by BizTalk Server against the BizTalk Server Specification document (XML schema).