Information of category availability, per advertising channel.

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

| Fields ||
|---|---|
| ## `channel` | `https://developers.google.com/google-ads/api/reference/rpc/v25/CriterionCategoryChannelAvailability` Channel types and subtypes that are available to the category. |
| ## `locale[]` | `https://developers.google.com/google-ads/api/reference/rpc/v25/CriterionCategoryLocaleAvailability` Locales that are available to the category for the channel. |