A SharePlus link (S+ Link) is a SharePlus feature which allows users to perform certain actions within SharePlus, invoking these actions from HTML content. A S+ Link is basically a custom URL scheme that starts with splus:// (HTTP) or spluss:// (secure HTTPS channel) and is followed by the resource’s URL without the HTTP or HTTPS protocols. They can be used to modify the application configuration when building the URL with a set of required parameters.
S+ links are useful for a number of different application-related behaviors, including internal navigation and navigation within the application, editions, configuration changes and searches. For more information on any of these, go to the SharePlus Links Reference.