Send WCF Custom Header in Biztalk
*"When using the WCF Adapters, SOAP Headers are defined with the built-in WCF.OutboundCustomHeaders context property. This property holds all custom SOAP headers, wrapped inside an additional <headers> tag.
Headers can be specified from within an orchestration with the following syntax in an Expression shape*:" [Stackoverfklow]
OutboundMessage(WCF.OutboundCustomHeaders) = "" + "<headers>" "<tns1:Header1 xmlns:tns1='http://tns1'>" + "</tns1:Header1>" + "<tns2:Header2 xmlns:tns2='http://tns2'>" + "</tns2:Header2>" + "</headers>" + "";
See Also
Another important place to find a huge amount of BizTalk related articles is the TechNet Wiki itself. The best entry point is BizTalk Server Resources on the TechNet Wiki.