How do I create a Lookalike Audience in Nabu for Facebook Pixel?

A Lookalike Audience lets you reach new shoppers who resemble an existing Custom Audience, built and synced to Meta directly from the app.

Before you start, you need at least one Custom Audience already created. A Lookalike Audience is always built from a Custom Audience, so create that first if you haven't yet.

Follow the steps below:

1. In the app, click Audiences in the left navigation, then switch to the Lookalike Audience tab.
2. Click Create.

3. Under Ads Account, select the connected Meta ad account you want this audience created in.
4. Under Source Audience, search for and select one or more existing Custom Audiences to seed the lookalike. Each one you pick becomes a chip below the field. If you select more than one, a separate Lookalike Audience is created from each.
5. Under Target Area, search for the countries you want to target. Results are grouped by region, and each selection is added as a removable chip.

6. Choose a Country Classification:

• Combined Multi-Country Audience (selected by default) creates a single Lookalike Audience that spans every country you picked.
• Per-Country Audiences creates one separate Lookalike Audience for each country you picked, named automatically in the format LOOKALIKE (<country code> - <size%>) - <source audience name>.

7. Drag the Audience Size slider to set how closely the audience should match your source, from 1% to 10%. A smaller percentage is a closer match to your source audience; a larger percentage reaches more people but matches less closely. It defaults to 1%.
8. Click Create.

That's it. Your Lookalike Audience (or audiences, if you chose Per-Country) is created and synced to your Meta ad account. You can check on it anytime from the Lookalike Audience tab, where the Source Audience, Target Countries, Audience Size, and Estimated reach are all shown, and from the Errors tab if a sync ever fails.

Updated on: 14/09/2026