There is is mentioned related documentation in the SAP Adapter user guide that I can’t find:
RFC-XML Format Specifications (IFR-XMLFormatSpec.pdf)
RFC-XML Specification (RFC_XML.html)
BizTalk Envelope Specifications (BizTalkEnvelopeSpec.pdf)
Unfortunately, I was unable to find that documentation on andvantage.webmethods.com site also. Does somebody know where to get missing documentation.