In service mediation, the ESB exposes a service endpoint on the ESB, that accepts messages from clients. Typically, these services act as proxies for existing (external) services, and the role of the ESB would be to "mediate" these messages before they are proxied to the actual service. In this mode, the WSO2 ESB could expose a service already available in one transport, over a different transport or expose a service that uses one schema or WSDL as a service that uses a different schema or WSDL etc.
Refer to Proxy Services.
Services can also be added, edited and deleted.
Also refer to Managing Services for more information on how to configure their options.