About Google Analytics GA4
The event data behind every web visit you track.
Google Analytics 4 replaced Universal Analytics in 2023 with an event-based data model. Every interaction on a website or app is recorded as an event with parameters, grouped into sessions and tied to user and device identifiers where consented. GA4 also ships a free BigQuery export that reveals the full, unsampled event stream behind its UI.
The point of pulling GA4 into a warehouse is that the GA4 interface samples, thresholds and aggregates to stay fast, and the numbers that land in a marketing deck are not always the numbers the finance team sees. Next to Google Ads, Facebook Ads, Shopify orders and CRM deals, the GA4 event stream becomes the attribution layer that ties a first touch to a paid invoice, instead of three reports that disagree on the total.