http://blogs.msdn.com/richardbpi/archive/2006/09/15/Fixing-_2200_SOAP-_2F00_-Envelope-Schema_2200_-Error-In-BizTalk.aspxI was stuck with a shockingly frustrating error message in BizTalk, but thanks to an obscure tweak identified in the BizTalk Developer's Troubleshooting Guide , all is right with the world. The error I kept getting was Document type does not match anyen-USCommunityServer 2.1 SP1 (Build: 61025.2)http://blogs.msdn.com/richardbpi/archive/2006/09/15/Fixing-_2200_SOAP-_2F00_-Envelope-Schema_2200_-Error-In-BizTalk.aspx#2538295Fri, 11 May 2007 07:42:27 GMT91d46819-8472-40ad-a661-2c78acb4018c:2538295Monish Nagisetty's Blog<p>This is an issue that has been torturing me for a while and I have finally found the solution. Big thanks</p>