Build audience segments from watch and engagement

Create segments of households that watched most of your ads or interacted with them, then target them from a line item.

Audience segments group households by how far they watched your ads or whether they interacted. They work like retargeting segments, with watch-depth and engagement choices instead of view signals.

Steps

  1. Open Audience Segments and select New Segment.
  2. Enter a Name.
  3. Choose the Segment Type: Watched, Engaged or Extended.
  4. For Watched, choose the Watch Signal, the Lookback Window and Min Occurrences. For Engaged, choose the Engagement Window. For Extended, choose the Parent Segment and Expansion Multiplier.
  5. Select Create Segment.
  6. On a line item, open the Audience tab and tick the segment under CTV Audience Segments. See Line items and targeting.

Segment types

TypeHouseholds that
WatchedWatched 75% or watched to the end of your ad, inside the lookback window you choose, as many times as you set.
EngagedClicked or interacted with an overlay in the last 7 or 30 days.
ExtendedA segment you already have, plus your other viewers with the most completed views, up to two, three or four times its size. These are your own viewers, not a model of similar households.

The lookback runs from 7 days to 90 days.

To target your own customer list, use Custom audiences. The Your own list card on this page opens it.

Keeping them current

Watched, Engaged and Extended segments rebuild every 30 minutes. The refresh icon on a segment rebuilds it now. Each segment shows when it was last built. Households that cannot be identified, that fail quality checks or that opted out are not counted.

What has to be true to deliver

  • A segment needs at least 1,000 households before it can be added to a line item. The page says so when it is smaller.
  • The publisher of the channel must allow audience data. If it does not, the line item does not serve there.
  • LtvAdx must be able to identify the household on that ad request.

If something goes wrong

  • A segment stays at Building or shows Error: wait for the next rebuild, then contact support.
  • The segment does not appear on the line item's Audience tab: it is not ready or is below the minimum.
  • Delivery is thin: widen the lookback, lower Min Occurrences, or extend the segment. Then check Why a campaign is not delivering.

Last reviewed 2026-11-03

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