> [!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/KeywordPlanKeywordAnnotationEnum.KeywordPlanKeywordAnnotation).

Enumerates keyword plan annotations that can be requested.

[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_keyword_annotation.proto)

| Enums ||
|---|---|
| ## `KEYWORD_CONCEPT` | Return the keyword concept and concept group data. |
| ## `UNKNOWN` | The value is unknown in this version. |
| ## `UNSPECIFIED` | Not specified. |