SOAPAction Not Supported

Hey all,

I'm attempting to use cfhttp to connect to a webservice but I'm having trouble figuring out the proper SOAPAction header to send.

The wsdl can be found here: https://services.frx.com/speakerprogramdevelopment/vendorservice.wsdl

I want to use the CreateProgram method but no matter what I put in my SOAPAction header all I get back is 500 error: The message with Action '' cannot be processed at the receiver, due to a ContractFilter mismatch at the EndpointDispatcher. This may be because of either a contract mismatch (mismatched Actions between sender and receiver) or a binding/security mismatch between the sender and the receiver. Check that sender and receiver have the same contract and the same binding (including security requirements, e.g. Message, Transport, None).

my cfhttp code:

<cfhttp url="https://services.frx.com/speakerprogramdevelopment/vendorservice.svc" method="post" result="httpResponse">

<cfhttpparam type="header" name="SOAPAction" value="https://services.frx.com/speakerprogramdevelopment/VendorService/CreateProgram"/>

<cfhttpparam type="header" name="accept-encoding" value="no-compression"/>

<cfhttpparam type="xml" value="#trim( soapBody )#"/>

</cfhttp>

Thanks