> [!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/KeywordPlanAggregateMetricTypeEnum.KeywordPlanAggregateMetricType).

Aggregate fields.

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

| Enums ||
|---|---|
| ## `DEVICE` | The device breakdown of aggregate search volume. |
| ## `UNKNOWN` | The value is unknown in this version. |
| ## `UNSPECIFIED` | Not specified. |