A campaign to do a keyword campaign forecast.

[Proto definition ![GitHub](https://developers.google.com/site-assets/logo-github.svg)](https://github.com/googleapis/googleapis/blob/master/google/ads/googleads/v26/services/keyword_plan_idea_service.proto)

| Fields ||
|---|---|
| ## `ad_groups[]` | `https://developers.google.com/google-ads/api/reference/rpc/v26/ForecastAdGroup` The ad groups in the new campaign to forecast. |
| ## `bidding_strategy` | `https://developers.google.com/google-ads/api/reference/rpc/v26/CampaignToForecast.CampaignBiddingStrategy` Required. The bidding strategy for the campaign. |
| ## `geo_target_constants[]` | `string` Locations to be targeted. Locations must be unique. The resource name is of the format "geoTargetConstants/{criterion_id}". |
| ## `language_constants[]` | `string` The list of resource names of languages to be targeted. The resource name is of the format "languageConstants/{criterion_id}". See <https://developers.google.com/google-ads/api/data/codes-formats#languages> for the list of language criterion codes. |