> [!CAUTION]
> **Caution:** This documentation is for Google Ads API **v23** . The latest active version is [**v26**](https://developers.google.com/google-ads/api/reference/rpc/latest/EndExperimentRequest).

Request message for `ExperimentService.EndExperiment`.

[Proto definition ![GitHub](https://developers.google.com/site-assets/logo-github.svg)](https://github.com/googleapis/googleapis/blob/master/google/ads/googleads/v23/services/experiment_service.proto)

| Fields ||
|---|---|
| ## `experiment` | `string` Required. The resource name of the campaign experiment to end. |
| ## `validate_only` | `bool` If true, the request is validated but not executed. Only errors are returned, not results. |