Reply To: Differences in Event Count Between BigQuery and GA4 UI

[Devin]

The discrepancy between Google Analytics 4 (GA4) and BigQuery may be due to extra events recorded in BigQuery that GA4 doesn’t count, like “first_open” or “session_start”. To match GA4, you could modify your query to exclude these. Also, GA4 aggregates data and removes some outliers, which could account for lower numbers. It’s not just you—this can be a complex thing to navigate!