Assume that you have installed Cumulative Update 4 for Microsoft BizTalk Server 2013. When you set PromoteDocSpecName to False in your BizTalk solutions, you may notice that the solution fails with an XmlDasmException error, and you may receive an error message that resembles the following:
Microsoft.XLANGs.Pipeline.XLANGPipelineManagerException: There was a failure executing pipeline "xxxxxxxxxxxxx". Error details: "Document type "FilePath\FileName" does not match any of the given schemas. ".