Campaign-level settings for App Campaigns.

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

| Fields ||
|---|---|
| ## `app_id` | `string` Immutable. A string that uniquely identifies a mobile application. |
| ## `app_store` | `https://developers.google.com/google-ads/api/reference/rpc/v26/AppCampaignAppStoreEnum.AppCampaignAppStore` Immutable. The application store that distributes this specific app. |
| ## `bidding_strategy_goal_type` | `https://developers.google.com/google-ads/api/reference/rpc/v26/AppCampaignBiddingStrategyGoalTypeEnum.AppCampaignBiddingStrategyGoalType` Represents the goal which the bidding strategy of this app campaign should optimize towards. |