title: Does SOAP always need WSDL?
body: <p>Does SOAP always need WSDL or can it work without WSDL? I've been doing some reading on the internet and it's making me confused.</p>
  
  <p>From what I can see, SOAP request can contain the message in the XML: <a href="http://www.w3schools.com/soap/soap_example.asp" rel="nofollow">http://www.w3schools.com/soap/soap_example.asp</a>. Then why do I need WSDL? Or does it depend on how the SOAP service is set up in the server end?</p>