A Product Category.

[Proto definition ![GitHub](https://developers.google.com/site-assets/logo-github.svg)](https://github.com/googleapis/googleapis/blob/master/google/ads/googleads/v25/resources/product_category_constant.proto)

| Fields ||
|---|---|
| ## `category_id` | `int64` Output 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>. |
| ## `level` | `https://developers.google.com/google-ads/api/reference/rpc/v25/ProductCategoryLevelEnum.ProductCategoryLevel` Output only. Level of the product category. |
| ## `localizations[]` | `https://developers.google.com/google-ads/api/reference/rpc/v25/ProductCategoryConstant.ProductCategoryLocalization` Output only. List of all available localizations of the product category. |
| ## `product_category_constant_parent` | `string` Output only. Resource name of the parent product category. |
| ## `resource_name` | `string` Output only. The resource name of the product category. Product category resource names have the form: `productCategoryConstants/{level}~{category_id}` |
| ## `state` | `https://developers.google.com/google-ads/api/reference/rpc/v25/ProductCategoryStateEnum.ProductCategoryState` Output only. State of the product category. |