BizTalk 2009. WCF-SAP. Error receiving IDOC's from SAP R/3

Question

I got the problem receiving IDOC's in BizTalk 2009 after our SAP team has upgraded SAP R/3 from 4.3 to 7.4 version (not sure in exact version numbers).

The error in BizTalk 2009 Event log is:

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The adapter "WCF-SAP" raised an error message. Details 

System.ServiceModel.CommunicationObjectFaultedException: The communication object, Microsoft.Adapters.Internal.LayeredChannelBindingElement.LayeredInboundChannel`1[System.ServiceModel.Channels.IReplyChannel], cannot be used for communication because it is in the Faulted state.
   at System.ServiceModel.Channels.CommunicationObject.Close(TimeSpan timeout)
   at System.ServiceModel.Channels.CommunicationObject.Close()
   at System.ServiceModel.Dispatcher.ErrorHandlingReceiver.Close().

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I tried to increase receive timeout

But the error is still here.

How can I resolve this?

Answer 1

The erorr that the channel is in a Faulted state is a top-error just stating that an error occurred.

It might be useful to setup WCF tracing to see the underlying error.
Take a look at the above link to see how.