Someone sent me an e-mail over the weekend asking about how to wire up Commerce Server and Dynamics. Fortunately, there is any easy answer – BizTalk Server! The BizTalk team has published an adapter for Dynamics 4.0, released on October 6, 2008. It is available at http://www.microsoft.com/downloads/details.aspx?FamilyID=abd3bb9e-a59a-4eb6-8de8-fb25b77926d7&displaylang=en. Using this and the BizTalk Adapters in Commerce Server, it is possible to get CRM and Commerce Server talking without actually writing code. I highly recommend checking it out! Hope this helps.