What is the ‘User Lifetime’ scope in GA4 Explorations and how does it differ from ‘Across All Sessions’ scope?

Question

Google Analytics GA4 — Hard

What is the ‘User Lifetime’ scope in GA4 Explorations and how does it differ from ‘Across All Sessions’ scope?

Accepted Answer

User Lifetime in GA4 Explorations shows metrics accumulated since the user's first visit ever, regardless of the date range selected. This is different from 'Across All Sessions' scope, which only shows user metrics within the selected date range. User Lifetime is useful for analyzing the total historical value of users who converted within the date range.