Audience segments

Audience segments is a Meta-only, per-ad-account library. It creates reusable segment definitions and controls how selected audiences contribute to the Existing customers and Engaged audience reporting roles. For provider-level Custom Audience and lookalike creation, see Custom audiences.

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Before you begin

• Connect and sync Meta Ads.
• Confirm the exact Meta ad account at the top of the segment card.
• Ensure the account has the required Custom Audience terms accepted in Meta.
• Know whether the audience is for targeting, exclusion, or reporting classification.
• Use a Marketer Owner, Admin, or Member role to create or change segments. Viewers inspect only.

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Understand Meta’s reporting roles

Meta groups delivery into New, Engaged, and Existing audiences. Marketer manages two supporting role selections: An Engaged selection shows Needs Ads Manager setup. Follow the checklist to open Meta’s Advertising settings and choose the same audience under Engaged audience. The status reflects after the next backsync. Customer exclusions for acquisition policy live in Guardrails → New customer acquisition. That selection is separate from reporting roles even when it uses the same Meta Custom Audience.

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Create a segment

Meta limits the number of Custom Audiences per ad account. The page blocks creation when the provider cap is reached.

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Segment source behavior

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Website

Website segments can include:

• all website visitors;
• visitors whose URL contains a value; or
• visitors who triggered a selected pixel event.

Confirm the pixel belongs to the active ad account and the URL rule is specific enough to avoid unintended traffic.

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Facebook Page engagement

Choose the granted Page associated with the ad account. If the Page is missing, return to Meta Ads and use Add a Facebook Page or update the asset selection.

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Custom rule (JSON)

This represents an existing raw Meta rule. Preserve it unless a qualified operator can validate the provider syntax and intended population.

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Rename, edit, or archive

• Renaming a segment also renames the live Meta Custom Audience.
• Editing the rule changes the audience definition associated with the segment.
• Archive keeps the definition available for historical interpretation but hides it from the active library.
• Archiving does not delete the live Meta audience.

Marketer blocks archive while the segment is referenced by an ad set, reporting role, or customer exclusion. Remove the dependency intentionally before archiving.

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Terms and provider processing

Meta can require general Custom Audience terms and separate website or pixel terms. If the acceptance state is unknown, Marketer can attempt the provider operation; a rejection directs you to the relevant Meta acceptance flow. Audience size is approximate and may be unavailable while Meta builds or refreshes the population. Processing delay is not the same as an empty rule.

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Verify a segment safely

1. Confirm the ad account ID and pixel or Page.
2. Confirm source rule and retention window.
3. Check the matching Meta Custom Audience.
4. Wait for provider processing.
5. Assign the intended reporting or exclusion role.
6. For Engaged audience, complete the Ads Manager step.
7. Confirm the next backsync before interpreting New, Engaged, or Existing reporting.

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Common recovery paths

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Next step

Review Custom audiences, then connect the approved customer audiences to Guardrails → New customer acquisition without confusing exclusions with reporting roles.