There has been little documentation, if any, either on MSDN or CustomerSource regarding the implementation of AIF Services with the BizTalk Adapter.
I have been working with this for Dynamics 2009, which is even worse, as all of the documentation is for dynamics 4. I managed to figure out, with the help of some others how to configure dynamics to enable BizTalk to at least send a document to it. It’s all about end points, and services. See below for the step by step.