A lookalike audience is an ad audience Meta builds by finding new people who resemble your existing customers, site visitors or followers.
You choose a source audience (for example, buyers from the last 180 days) and Meta finds people who share their traits but don’t know you yet. It is one of the most efficient ways to win new customers.
The quality of the source decides the result: a source made of real customers rather than random followers produces a much better-performing lookalike.
EXAMPLE
A 1% lookalike built from a list of 300 customers targets the roughly 1% of people in the country most similar to them.
PRACTICAL TIPS
- 01Use real customer or purchase data as the source.
- 02Start with a 1% audience, then widen it.
- 03Exclude existing customers from lookalike campaigns.