If more than one borrower occurs under “Borrowers”, we get the following error:

A message sent to adapter “FILE” on send port “YourSendPortName” with URI “c:BiztalkDemosYourSubFolder%SourceFileName%” is suspended.
Error details: Unable to read the stream produced by the pipeline.
Details: Cannot find definition for the input: BORROWER

The m ap w as using a Logical-If and a Value-Flattening Functoid.
The incoming test data was auto-generated by doing a right-click generate on a schema,
thus we had duplicate children (Borrowers) in the incoming data file.

By changing the test data, and setting various flags so that the Logical-If functoid only selected one child amongst the children, the problem went away.

This error was only detected when running via the pipeline. The error did not occur when doing a “Test Map” inside Visual Studio.