Zalo 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/v24/common/asset_types.proto)

| Fields ||
|---|---|
| ## `zalo_id` Union field. Zalo identifiers used for starting a chat on Zalo. One of `oa_id` or `custom_name` must be set. `zalo_id` can be only one of the following: ||
| ### `custom_name` | `string` Custom name generated by the advertiser for their Zalo Account. These names will usually be registered brands or trademarks. |
| ### `oa_id` | `int64` Zalo Official Account ID of the advertiser. |