How to activate service via SOAMANAGER

Hi

Is there a way to activate web service via Transaction SOAMANAGER? I've created a service and endpoint for a webservice, however, in transaction SOAMANAGER, I can find no place to activate the service, the state of the service always shows "inactive". Does anybody perhaps know how to fix this. I already checked transaction SICF, the webservice is activated there.

Many thanks guys.