If I want to publish the view as SOAP web service and consume it in a third party application like SoapUI, I will use the WSDL of the published web service in this external application which automatically generates a request with the required and expected structure. Then, by filling the required request I can execute the web service and check the output in the response field to view the data.
Once you publish the view as SOAP web service, click on the ‘ContextPath’ link then you will be navigated to the browser and click on the ‘SOAP’ -> ‘wsdl’ to copy the URL. And then, use the same URL in the third party application to send a request and receive the response as expected.
I hope this helps!!