You do not have to designate an explicit Application Service for a Unified Broker. Instead, you can specify that the broker supports the default service. The default service is a special Application Service designation that supports default client connection requests. Thus, any Unified Broker that supports the default service and is of the appropriate type (AppServer, OpenEdge Adapter for SonicMQ, WebSpeed, or DataServer) can satisfy a connection request from a client that does not specify an Application Service name as part of its connection request.