Lookalike Audience
A targeting option that finds new people similar to your existing customers.
Why It Matters
Lookalikes let you scale campaigns by reaching high-potential prospects you could not find manually.
How It Works
You upload a source audience (like past buyers), and the platform analyzes their traits to find new users with similar characteristics. You choose a percentage size from 1% (most similar) to 10% (broadest).
Real-World Example
A 1% lookalike based on 5,000 past purchasers generates a new audience of 2 million high-intent users.
Common Mistakes
Using too large a lookalike percentage (5%+) too early
Building lookalikes from low-quality source audiences
Related Terms
Dividing your target audience into distinct groups based on shared characteristics.
Showing ads to people who have previously interacted with your brand online.
Meta automated campaign type that uses AI to optimize targeting, placements, and creative.
Lookalike Audience FAQs
What is the best source audience for lookalikes?
Your highest-value customers or purchasers make the best seed audiences.
How big should the source audience be?
Meta recommends at least 1,000 people in your source audience for best results.
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