Get a nightly build of free SoapUI. I say nightly only because some time ago it was only version that supported windows authorization, If your Nav web-service configured with another authorization type just use stable build.
SoapUI is able to consume provided web-service URL and make sample SOAP messages for you. You can even send those messages to your service to test if its work and inspect responses.
- Get URL to your web-service's WSDL.
- Create new project in SoapUI and paste URL into
Initial WSDL\WADL
field and hit Ok.
- WSDL will be processed and in project tree there will be listed all available functions (methods) of your service.
- By expanding and clicking on them you can create, view and run requests against your service.
Or watch this short video.