Event Match Quality Checker
Score your GA4 event match quality before sending
How It Works
Enter your event name
Type the GA4 event name you are sending (e.g., purchase, generate_lead).
Select included parameters
Check which parameters you are sending with the event.
Get your quality score
See your match quality score out of 10 and recommendations for improvement.
Event Match Quality Checker
Parameters Included
What Is GA4 Event Match Quality?
GA4 Event Match Quality is a score from 1 to 10 that Google assigns to your conversion events, indicating how effectively they can be matched to ad clicks for conversion attribution. A score of 10 means Google has high confidence in attributing this conversion to a specific ad interaction.
Parameters That Improve GA4 Event Match Quality
- transaction_id — Allows Google to deduplicate conversions and match them precisely to ad clicks.
- value — The monetary value of the conversion. Required for ROAS-based Smart Bidding.
- currency — The ISO 4217 currency code. Required for any revenue reporting.
- Enhanced Conversions data — Hashed email, phone number, first name, last name, and address. The most impactful addition to match quality after cookies.
- user_id — Your internal user identifier. Enables cross-device attribution.
How Low Event Match Quality Affects Smart Bidding
Google Ads Smart Bidding strategies depend on conversion signals to predict which users are likely to convert. Low-quality conversion events provide a weak signal, meaning Smart Bidding has less information to work with. Improving your event match quality directly improves the accuracy of Smart Bidding, which in turn improves campaign efficiency and ROAS over time.