A Local Services Ads service ID. Represents a service type (such as install_faucet) that a Local Services Campaign can target.

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

| Fields ||
|---|---|
| ## `service_id` | `string` The criterion resource name. |