To view a Service, you can go to Service List page by clicking on Services Tab in left menu and once you are on the Service List page, you can search for the right product and click 'Edit Service' from the action buttons. This will take you the View/Edit Service Page.
This page has three sections:
Service Details shows the details of the service selected. You can edit any detail you would like to.
History shows the usage history of service in invoice from the time of service addition to system. Change Log shows all changes made to service till it was added to system.