Meta's score (1 to 10) of how well the customer information sent with Conversions API events matches to Meta accounts. Higher scores mean more attributed conversions and better optimization; the score rises with the number and quality of identifiers sent.
Related terms
Cite this entry:
Agency Echelon. "Event Match Quality." Agency Echelon Reference, reviewed September 2026. https://agencyechelon.com/reference/glossary/event-match-quality/