What is ‘sampling’ in GA4 Explorations and how does it differ from BigQuery unsampled data?

Question

Google Analytics GA4 — Hard

What is ‘sampling’ in GA4 Explorations and how does it differ from BigQuery unsampled data?

Accepted Answer

GA4 Explorations use sampling to process a subset of data when queries exceed thresholds, indicated by a shield icon. This helps estimate results faster. BigQuery Export, on the other hand, provides 100% unsampled raw event data for more accurate analysis of large datasets.