Customer lists in Google Ads allow advertisers to upload first-party customer data (such as email addresses, phone numbers, or other identifiers) to target or exclude specific users across Google’s networks.
This feature is often referred to as Customer Match.
How it works
- You securely upload hashed customer data
- Google matches the data to signed-in users
- Ads can then be shown (or excluded) based on that audience
Common use cases
- Re-engaging existing customers
- Upselling or cross-selling
- Excluding current customers from acquisition campaigns
- Targeting high-value customer segments
Why it matters
Customer lists help leverage first-party data to improve targeting precision and campaign efficiency.
In short: Customer lists allow you to use your own customer data for more strategic audience targeting.