Advanced Google Analytics 4 and BigQuery

GA4 Explorations is an advanced analysis workspace offering six exploration types: Free Form (drag-and-drop table and chart building), Funnel Exploration, Path Exploration, Segment Overlap, Cohort Exploration, and User Lifetime.

Unlike standard GA4 reports with fixed dimensions, Explorations lets analysts build custom queries across any combination of dimensions and metrics, with up to 10 dimensions and 10 metrics per query.

GA4's Cohort Exploration groups users by their acquisition date (or first event date) and tracks their behavior over subsequent weeks or months, revealing how well you retain users acquired through different channels and campaigns.

A cohort chart showing steep week-2 drop-off signals an onboarding problem; cohorts from content marketing that have higher 90-day retention than paid cohorts inform where to invest for sustainable growth.