> [!WARNING]
> Display \& Video 360 API v5 is currently in beta.

- [Resource: LookalikeAudience](https://developers.google.com/display-video/api/reference/rest/v5/lookalikeAudiences#LookalikeAudience)
  - [JSON representation](https://developers.google.com/display-video/api/reference/rest/v5/lookalikeAudiences#LookalikeAudience.SCHEMA_REPRESENTATION)
- [LookalikeAudienceReachLevel](https://developers.google.com/display-video/api/reference/rest/v5/lookalikeAudiences#LookalikeAudienceReachLevel)
- [Methods](https://developers.google.com/display-video/api/reference/rest/v5/lookalikeAudiences#METHODS_SUMMARY)

## Resource: LookalikeAudience

Describes a Lookalike audience resource. Includes Lookalike audience lists.

| JSON representation |
|---|
| ``` { "name": string, "lookalikeAudienceId": string, "displayName": string, "seedAudienceListIds": [ string ], "reachLevel": enum (`https://developers.google.com/display-video/api/reference/rest/v5/lookalikeAudiences#LookalikeAudienceReachLevel`), "geographyCodes": [ string ] } ``` |

| Fields ||
|---|---|
| `name` | `string` Output only. The resource name of the lookalike audience. |
| `lookalikeAudienceId` | `string (https://developers.google.com/discovery/v1/type-format format)` Output only. The unique ID of the Lookalike audience. Assigned by the system. |
| `displayName` | `string` Required. The display name of the Lookalike audience. |
| `seedAudienceListIds[]` | `string (https://developers.google.com/discovery/v1/type-format format)` Required. The list of seed audience list IDs. |
| `reachLevel` | ``enum (`https://developers.google.com/display-video/api/reference/rest/v5/lookalikeAudiences#LookalikeAudienceReachLevel`)`` Required. The reach level of the Lookalike audience. |
| `geographyCodes[]` | `string` Required. 2-letter ISO 3166 region code for the Lookalike audience regions. |

## LookalikeAudienceReachLevel

Possible levels of the Lookalike audience reach levels.

| Enums ||
|---|---|
| `LOOKALIKE_AUDIENCE_REACH_LEVEL_UNSPECIFIED` | Default value when type is not specified or is unknown. |
| `LEAST_REACH` | Least reach level. |
| `MEDIUM_REACH` | Medium reach level. |
| `MOST_REACH` | Most reach level. |

| ## Methods ||
|---|---|
| ### `https://developers.google.com/display-video/api/reference/rest/v5/lookalikeAudiences/create` | Creates a new Lookalike audience. |
| ### `https://developers.google.com/display-video/api/reference/rest/v5/lookalikeAudiences/get` | Gets a Lookalike audience. |
| ### `https://developers.google.com/display-video/api/reference/rest/v5/lookalikeAudiences/list` | Lists Lookalike audiences. |