> [!CAUTION]
> **Caution:** This documentation is for Google Ads API **v24** . The latest active version is [**v26**](https://developers.google.com/google-ads/api/fields/latest/product_category_constant).

[<button style="margin-top:15px">Help me build a query</button>](https://developers.google.com/google-ads/api/fields/v24/product_category_constant_query_builder.md.txt) [<button style="margin-top:15px">Proto definition ![GitHub](https://developers.google.com/site-assets/logo-github.svg)</button>](https://github.com/googleapis/googleapis/blob/master/google/ads/googleads/v24/resources/product_category_constant.proto)

A Product Category.

## product_category_constant.category_id

Field descriptionOutput only. The ID of the product category.

This ID is equivalent to the google_product_category ID as described in
this article: <https://support.google.com/merchants/answer/6324436>.
Category`ATTRIBUTE` Data Type`INT64` Type URL`N/A` FilterableTrue SelectableTrue SortableTrue RepeatedFalse Selectable with The following fields/resources can be selected with this field:
[product_category_constant](https://developers.google.com/google-ads/api/fields/v24/product_category_constant.md.txt)

## product_category_constant.level

Field descriptionOutput only. Level of the product category.
Category`ATTRIBUTE` Data Type `ENUM`
`LEVEL1``LEVEL2``LEVEL3``LEVEL4``LEVEL5``UNKNOWN``UNSPECIFIED` Type URL`google.ads.googleads.v24.enums.ProductCategoryLevelEnum.ProductCategoryLevel` FilterableTrue SelectableTrue SortableTrue RepeatedFalse Selectable with The following fields/resources can be selected with this field:
[product_category_constant](https://developers.google.com/google-ads/api/fields/v24/product_category_constant.md.txt)

## product_category_constant.localizations

Field descriptionOutput only. List of all available localizations of the product category.
Category`ATTRIBUTE` Data Type`MESSAGE` Type URL`google.ads.googleads.v24.resources.ProductCategoryConstant.ProductCategoryLocalization` FilterableFalse SelectableTrue SortableFalse RepeatedTrue Selectable with The following fields/resources can be selected with this field:
[product_category_constant](https://developers.google.com/google-ads/api/fields/v24/product_category_constant.md.txt)

## product_category_constant.product_category_constant_parent

Field descriptionOutput only. Resource name of the parent product category.
Category`ATTRIBUTE` Data Type`RESOURCE_NAME` Type URL`N/A` FilterableTrue SelectableTrue SortableFalse RepeatedFalse Selectable with The following fields/resources can be selected with this field:
[product_category_constant](https://developers.google.com/google-ads/api/fields/v24/product_category_constant.md.txt)

## product_category_constant.resource_name

Field descriptionOutput only. The resource name of the product category.
Product category resource names have the form:

`productCategoryConstants/{level}~{category_id}`
Category`ATTRIBUTE` Data Type`RESOURCE_NAME` Type URL`N/A` FilterableTrue SelectableTrue SortableFalse RepeatedFalse Selectable with The following fields/resources can be selected with this field:
[product_category_constant](https://developers.google.com/google-ads/api/fields/v24/product_category_constant.md.txt)

## product_category_constant.state

Field descriptionOutput only. State of the product category.
Category`ATTRIBUTE` Data Type `ENUM`
`ENABLED``OBSOLETE``UNKNOWN``UNSPECIFIED` Type URL`google.ads.googleads.v24.enums.ProductCategoryStateEnum.ProductCategoryState` FilterableTrue SelectableTrue SortableTrue RepeatedFalse Selectable with The following fields/resources can be selected with this field:
[product_category_constant](https://developers.google.com/google-ads/api/fields/v24/product_category_constant.md.txt)