Error message when you use a Request-Response receive location in BizTalk Server 2006 R2

Consider the following scenario:

• You use a Request-Response port to receive messages and to send responses in BizTalk Server 2006 R2.
• You use two orchestrations to process the received messages.
• You use the Request-Response port to communicate between the two orchestrations. Additionally, you specify "Direct" as the binding type for the port.
• You receive a message in the receive location.

In this scenario, a response message is routed to two subscribers. One copy of the response is received successfully, and the other copy is suspended. Because of this behavior, the following error message is logged in the Application log:Note This issue may occur in BizTalk Server 2009.

This problem occurs because BizTalk Messaging Engine routes the response message from the second orchestration to both the first orchestration and the original Request-Receive port.

The hotfix that resolves this problem is included in cumulative update package 1 for BizTalk Server 2006 R2 Service Pack 1.

For more information about how to obtain the cumulative update package, click the following article number to view the article in the Microsoft Knowledge Base:

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

For more information about how to work with direct bound ports in orchestrations, visit the following Microsoft Developer Network (MSDN) Web site: For more information about Message Context properties, visit the following MSDN Web site: For more information about BizTalk Server hotfixes, click the following article number to view the article in the Microsoft Knowledge Base: