> [!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/CampaignSearchTermInsight).

This report provides a high-level view of search demand at the campaign level by grouping similar search terms into categories and showing their search volume. Historical data is available starting March 2023.

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

| Fields ||
|---|---|
| ## `campaign_id` | `int64` Output only. The ID of the campaign. |
| ## `category_label` | `string` Output only. The label for the search category. An empty string denotes the catch-all category for search terms that didn't fit into another category. |
| ## `id` | `int64` Output only. The ID of the insight. |
| ## `resource_name` | `string` Output only. The resource name of the campaign level search term insight. Campaign level search term insight resource names have the form: `customers/{customer_id}/campaignSearchTermInsights/{campaign_id}~{category_id}` |