What is ‘event deduplication’ in the GA4 Measurement Protocol and when is it necessary?

Google Analytics GA4 Hard

Google Analytics GA4 — Hard

What is ‘event deduplication’ in the GA4 Measurement Protocol and when is it necessary?

Key points

  • Event deduplication prevents counting conversions twice in GA4
  • It uses transaction_id for purchase events to identify duplicates
  • Deduplication is necessary when events are tracked both client-side and via Measurement Protocol

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