The identifier for Hotel account.

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

| Fields ||
|---|---|
| ## `hotel_center_id` | `int64` Output only. The hotel center id of the hotel account. This field is read only |