Most of the fusion webservices, are not accessible from the SOAP ui and also not from the browser for execution and that is due to different policies implemented, which makes it inaccessible from the browser.
How we normally execute is we create a wrapper project in SOA and deploy it in the same service and due to this service is custom its accessible from SOAP ui or we test it directly from em console.
Accenture Services India.
I think there is quite a bit of confusion in the last several posts. Few clarification:
With these I think you should be able to call most FA services, unless some the service is secured with some more exotic policy..
Fusion Applications Developer Relations