Facebook Messenger information to use for messaging.

[Proto definition ![GitHub](https://developers.google.com/site-assets/logo-github.svg)](https://github.com/googleapis/googleapis/blob/master/google/ads/googleads/v25/common/asset_types.proto)

| Fields ||
|---|---|
| ## `page_name` | `string` Required. Facebook page name used for starting a chat on Facebook Messenger. |