Q: Our exploration reports were sampled and unreliable — how did someone get exact numbers?
A: A high-traffic publisher hit sampling on any exploration over 90 days. Numbers shifted every refresh, making reports untrustworthy:
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Admin → Product links → BigQuery links → Link a project (free sandbox tier)
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Enabled daily export of event-level data
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Rebuilt the key reports as SQL queries on the raw export
The same 'conversions by landing page' report that read 12,400 (sampled, ±8% per refresh) returned a stable 11,920 from BigQuery. Decisions stopped flip-flopping because the unsampled number never changed.
TL;DR: GA4 explorations sample at scale; the free BigQuery export gives unsampled, event-level truth for your critical reports.
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Q: Our exploration reports were sampled and unreliable — how did someone get exact numbers?
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