I was banging my head against my keyboard (metaphorically, but almost literally) trying to get query string parameters to work properly with the WCF-WebHTTP Adapter in BizTalk 2013 R2. I needed to call a REST service using query string parameters in the URL. Using “?param1=val¶m2=val” notation when configuring the Send Port was not working.
Fortunately, our good friend in the integration community, Richard Seroter, has encountered this before and blogged about it! Here’s the link.
The gist is that you have to use the HTML encoded value for the ampersands such as “?param1=val&param2=val”.
Using the tips in this blog post got me up and running. Thanks Richard!