| ### MutateCampaignLabels | |---| | `` rpc MutateCampaignLabels(`https://developers.google.com/google-ads/api/reference/rpc/v26/MutateCampaignLabelsRequest`) returns (`https://developers.google.com/google-ads/api/reference/rpc/v26/MutateCampaignLabelsResponse`) `` Creates and removes campaign-label relationships. Operation statuses are returned. List of thrown errors: [AuthenticationError](https://developers.google.com/google-ads/api/reference/rpc/v26/AuthenticationErrorEnum.AuthenticationError) [AuthorizationError](https://developers.google.com/google-ads/api/reference/rpc/v26/AuthorizationErrorEnum.AuthorizationError) [DatabaseError](https://developers.google.com/google-ads/api/reference/rpc/v26/DatabaseErrorEnum.DatabaseError) [FieldError](https://developers.google.com/google-ads/api/reference/rpc/v26/FieldErrorEnum.FieldError) [HeaderError](https://developers.google.com/google-ads/api/reference/rpc/v26/HeaderErrorEnum.HeaderError) [InternalError](https://developers.google.com/google-ads/api/reference/rpc/v26/InternalErrorEnum.InternalError) [LabelError](https://developers.google.com/google-ads/api/reference/rpc/v26/LabelErrorEnum.LabelError) [MutateError](https://developers.google.com/google-ads/api/reference/rpc/v26/MutateErrorEnum.MutateError) [NewResourceCreationError](https://developers.google.com/google-ads/api/reference/rpc/v26/NewResourceCreationErrorEnum.NewResourceCreationError) [QuotaError](https://developers.google.com/google-ads/api/reference/rpc/v26/QuotaErrorEnum.QuotaError) [RequestError](https://developers.google.com/google-ads/api/reference/rpc/v26/RequestErrorEnum.RequestError) [Proto definition ![GitHub](https://developers.google.com/site-assets/logo-github.svg)](https://github.com/googleapis/googleapis/blob/master/google/ads/googleads/v26/services/campaign_label_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).