Starting September 8, 2025, every new line item will need to declare whether or not they will serve Eurpoean Union (EU) political ads. Display & Video 360 API and SDF uploads that don't provide declarations will fail. See our deprecations page for more details on how to update your integration to make this declaration.
[null,null,["Last updated 2025-04-28 UTC."],[],[],null,["# ClickSignal\n\n| Display \\& Video 360 API is deprecated and will sunset on **October 7, 2025** . Migrate to [Display \\& Video 360 API v4](/display-video/api/reference/rest/v4) before sunset to avoid an interruption in service.\nSupported click signals for Algorithm Rules.\n\n| Enums ||\n|----------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| `CLICK_SIGNAL_UNSPECIFIED` | Unknown signal. |\n| `CLICK` | Whether the ad was clicked. Value is stored in the [boolValue](/display-video/api/reference/rest/v3/AlgorithmRules#ComparisonValue.FIELDS.bool_value) field of the comparison value. |"]]