Target

Custom and lookalike audiences

Reuse your own data and find people who resemble them, from the audience manager.

Intermediate 15 min

In brief

A custom audience is a group of people you already know: customer list, visitors to your website, people who have interacted with your videos or your account. A lookalike audience brings together people who resemble a source audience. They are created and tracked in Audience Manager.

Why it matters

  • Including an audience lets you re-engage people close to buying.
  • Excluding an audience avoids paying to reach customers who have already bought.
  • A lookalike audience broadens reach from good customers.

The steps

  1. Open More tools, then Audience Manager: the list shows the name, type, number of people, availability and creation date.
  2. Create an audience with Create audience, choosing the source (customer list, website traffic, engagement, lookalike).
  3. Wait for its status to change to Ready: an audience that is too small can’t be used.
  4. In the ad group with manual targeting, open Custom audiences: Include audiences or Exclude audiences, with the Quick select, Custom and Lookalike tabs.
  5. Use Refresh if an audience has just been created.

Pitfalls to avoid

  • Including and excluding the same audience, or audiences that overlap.
  • Using a list that is too small or out of date.
  • Importing people’s data without a legal basis: comply with the GDPR.

Frequently asked questions

Why doesn’t my audience appear? It may not be ready yet, or it may be too small: refresh the list.

What is the minimum size? It depends on the audience type; the tool shows the availability status.

Key takeaways

  • Custom = your data; lookalike = "resembles".
  • Include to re-engage, exclude to avoid waste.
  • Always check the Ready status.

Practice in TRIALO

Open Audiences: six demo audiences are ready. Use them as an inclusion, then as an exclusion, in an ad group.

From guide to practice

Include a demo audience in an ad group, then exclude it: compare the audience size.

  • Create your fictional campaigns, step by step
  • Analyze fake results to practice reading them
  • Export your work as a PDF
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This guide is provided for educational purposes. The platforms' tools change: always check the labels and steps in the real tool. TRIALO's results are fake and don't predict those of a real campaign. TRIALO is not affiliated with, endorsed by or sponsored by TikTok.