Customer Match
Customer Match is an advertising feature that lets you upload a list of customer contact details, such as emails, to target or exclude those people and build similar audiences across an ad platform. The data is hashed for privacy.
Why It Matters
It activates your first-party data for retention, exclusion, and prospecting, which is increasingly valuable as third-party cookies fade. Matching known customers improves targeting precision and lets you tailor bids and messaging.
Common Mistake
Uploading a stale or unsegmented list. Low match rates and untargeted messaging waste the audience, while segmenting by value and recency makes the data far more effective.