> ## Documentation Index
> Fetch the complete documentation index at: https://developers.criteo.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Audiences

<Warning>
  The Preview tier is now deprecated following our new [versioning policy](https://developers.criteo.com/criteo-apis/docs/versioning-policy). You have until the end of 2026 to migrate to either the current stable **2026.07** version or the upcoming release candidate **2027.01**, which will be available soon.
</Warning>

An audience represents **all users who interacted with specific brands or categories over a defined period**, and can be specifically targeted for your campaigns.

<Info>
  In Preview, we offer four sets of endpoints:

  * [Audiences](/retail-media/v2026-preview/docs/audiences-endpoints)
  * [Audience segments](/retail-media/v2026-preview/docs/audience-segments)
  * [Audiences size](/retail-media/v2026-preview/docs/audience-size)
  * [Audience-segments size](/retail-media/v2026-preview/docs/audience-segments-size)
</Info>

<Note>
  **Commerce Max Help Center**

  You can find more information about how to build  audiences and audience segments in Criteo C-Max Help Center, on [this page](https://help.retailmedia.criteo.com/kb/guide/en/offsite-build-an-audience-bxFM6LtmvS/Steps/2973790,3269127) for Offsite, and [this page](https://help.retailmedia.criteo.com/kb/guide/en/onsite-display-build-an-audience-5a0BoXiXmP/Steps/2360680) for Onsite Display.
</Note>

***

<br />

## What's next

* [Audiences Endpoints](/retail-media/v2026-preview/docs/audiences-endpoints)
* [Audience Segments Endpoints](/retail-media/v2026-preview/docs/audience-segments)
* [Audiences Size](/retail-media/v2026-preview/docs/audience-size)
* [Audience Segments Size](/retail-media/v2026-preview/docs/audience-segments-size)