How to use Soap UI without wsdl?

Question

Create new SOAP Project using File > New SOAP Project
Set the name as required
Leave the initial WSDL field blank
On the Project Navigator Window to the left, mouse over the project folder and select New Rest Service from URI using the context menu
Enter the enpoint you would like to send a SOAP message to, i.e. http://www.webservicex.net/WS/WSDetails.aspx?CATID=2&WSID=10
Choose POST as the HTTP method
Add your xml SOAP payload to the window in the bottom left
Choose media type: text/xml from the combobox
Click to green arrow to POST the message to the specified endpoint
And voilà – you should see the SOAP response on right-hand side window 🙂