When the XMLReceive pipeline has the AllowUnrecognizedMessage property set to True, it does not track Business Activity Monitoring (BAM) activity for receive-side events in Microsoft BizTalk Server. This issue occurs when the incoming message is unrecognized. This issue also occurs when a custom pipeline that has at least one pipeline component is used on the receive side and when BAM activity is configured on receive port.
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
Article ID: 3125071 - Last Review: Dec 31, 2015 - Revision: 1
Microsoft BizTalk Server 2013 R2 Branch, Microsoft BizTalk Server 2013 R2 Developer, Microsoft BizTalk Server 2013 R2 Enterprise, Microsoft BizTalk Server 2013 R2 Standard