For a pre-assembled dashboard to be available, at least one of the products that support it must be installed. For example, if a pre-assembled dashboard includes portlets that come from Campaign and eMessage, the dashboard will be available if either of these products is installed. If neither product is installed, the dashboard is not shown in the user interface. If one of the products is missing, the portlets that depend on that product are listed with a message indicating that it is not available.