2. What does the "Users" metric measure?
The total number of visits to your website
Users that had at least one session on your site in the given date range
Users that landed on the homepage of your website
Users who have signed up to an email newsletter on your website

Users that had at least one session on your site in the given date range

Explanation:

UserMetrics is use to measure user activity based on a set of standardized metrics. Using user metrics, a set of key metrics can be selected and applied to a cohort of users to measure their overall productivity. User Metric is designed for extensibility (creating new metrics, modifying metric parameters) and to support various types of cohort analysis and program evaluation in a user-friendly way.