Activity Stream represents a feed that allows checking all the updates and changes made to the followed records as well as sharing comments and discussing different issues connected to those records with the teammates in posts. The feature is available by default for Accounts, Contacts, Leads, Opportunities and Cases. Users can also utilize text-formatting tools to make their posts eye-catching. It’s also possible to mention other users while posting a comment so that a tagged person could get a notification about a post.