Symptoms
When you use a WCF-SAP NCO adapter, and you configure multiple receive locations that listen to different ProgramIDs on SAP Server, only one of the receive location works at a time. Each works fine as long as all others are disabled. If multiple locations are enabled, only the first one that was enabled actually listens.
Resolution
Cumulative update information
The fix that resolves this issue is included in the following cumulative update for BizTalk Server:
Status
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
References
Learn about the service pack and cumulative update list for BizTalk Server. Learn about BizTalk Server hotfixes and cumulative update support.
The third-party products that this article discusses are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, about the performance or reliability of these products.