> [!CAUTION]
> **Caution:** This documentation is for Google Ads API **v24** . The latest active version is [**v26**](https://developers.google.com/google-ads/api/reference/rpc/latest/ExclusionSegment).

An audience segment to be excluded from an audience.

[Proto definition ![GitHub](https://developers.google.com/site-assets/logo-github.svg)](https://github.com/googleapis/googleapis/blob/master/google/ads/googleads/v24/common/audiences.proto)

| Fields ||
|---|---|
| ## `segment` Union field. Segment to be excluded. `segment` can be only one of the following: ||
| ### `user_list` | `UserListSegment` User list segment to be excluded. |