As announced, Google will cease serving political advertising in the European Union ahead of new regulations in October 2025. Updates to the Campaign Manager 360 API v4 are being released to support this change, along with the launch of v5. The v4 API will enter a deprecation period, sunsetting on February 26, 2026, after which requests to v4 will return errors. Users are encouraged to upgrade to the latest version of their preferred client library and consult the migration guide for details.
Campaign Manager 360 will require self-declaration for EU political ads, necessitating users to declare if a campaign contains such ads when creating it. This declaration can also be made at the advertiser level. The API v4 and v5 will support the euPoliticalAdsDeclaration field for this purpose. New campaigns and existing campaigns with new placements, ads, or creatives will require this declaration.
The euPoliticalAdsDeclaration field will be added to Campaign and Advertiser objects, with specific values for each. For Advertiser resources, the values are:
- ADVERTISER_PLANS_TO_SERVE_EU_POLITICAL_ADS
- ADVERTISER_DOES_NOT_PLAN_TO_SERVE_EU_POLITICAL_ADS
For Campaign resources, the values are:
- CONTAINS_EU_POLITICAL_ADS
- DOES_NOT_CONTAIN_EU_POLITICAL_ADS
If the advertiser declares not to serve EU political ads, existing campaigns will be backfilled with this value. It is recommended to make the declaration at the advertiser level using the API or the Campaign Manager 360 UI.
If unable to declare at the advertiser level, users must provide declarations at the campaign level through the appropriate API methods. For further details on how this declaration impacts ad serving, users should refer to the Campaign Manager 360 Help center. Updated client libraries are available, and the release notes should be reviewed for all changes.
