The period of time a user is active on your site or app. By default, if a user is inactive for 30 minutes or more, any future activity is attributed to a new session. Users that leave your site and return within 30 minutes are counted as part of the original session.
Choose your own learning path
Check out google.com/analytics/learn, a new resource to help you get the most out of Google Analytics 4. The new website includes videos, articles, and guided flows, and provides links to the Google Analytics Discord, Blog, YouTube channel, and GitHub repository.