Error in SOAMANAGER transaction

Hi Buddies,

I have an rfc function module for which I create a web service(service difinition). In SOAMANAGER transaction, when I select the rfc function module and click "Open Webservice navigator for selected binding", it is throwing an error saying that

Service cannot be reached Note The termination occurred in system ECD with error code 404 and for the reason Not found. The selected virtual host was 0 .

Where might be the problem.

Searched the forums before posting. Please kindly suggest as it is delayed for GO LIVE.

Thanks & regards,

Kris