Hi Dave I think the error that is being reported
Snip... [java] org.osoa.sca.ServiceUnavailableException: Service not > found for component JMSClient reference service (bindingURI=null > operation=process). > Ensure that the composite containing the service is loaded and > started somewhere in the SCA domain and that if running in a remote > node that the interface of the target service marked as @Remotable > is coming from binding.sca. When you start your client are you seeing any errors when Tuscany tries to parse binding.jms? I'll have a go a see if I can reproduce. Regards Simon