| ### BookCampaigns | |---| | `` rpc BookCampaigns(`https://developers.google.com/google-ads/api/reference/rpc/v25/BookCampaignsRequest`) returns (`https://developers.google.com/google-ads/api/reference/rpc/v25/BookCampaignsResponse`) `` Books the requested campaigns. This request can have a latency of 30 seconds. [Proto definition ![GitHub](https://developers.google.com/site-assets/logo-github.svg)](https://github.com/googleapis/googleapis/blob/master/google/ads/googleads/v25/services/reservation_service.proto) | Authorization scopes : Requires the following OAuth scope: - `https://www.googleapis.com/auth/adwords` For more information, see the [OAuth 2.0 Overview](https://developers.google.com/identity/protocols/OAuth2).