> [!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/CampaignExperimentTypeEnum.CampaignExperimentType).

Indicates if this campaign is a normal campaign, a draft campaign, or an experiment campaign.

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

| Enums ||
|---|---|
| ## `BASE` | This is a regular campaign. |
| ## `DRAFT` | This is a draft version of a campaign. It has some modifications from a base campaign, but it does not serve or accrue metrics. |
| ## `EXPERIMENT` | This is an experiment version of a campaign. It has some modifications from a base campaign, and a percentage of traffic is being diverted from the BASE campaign to this experiment campaign. |
| ## `UNKNOWN` | Used for return value only. Represents value unknown in this version. |
| ## `UNSPECIFIED` | Not specified. |