> For the complete documentation index, see [llms.txt](https://developer.rategain.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://developer.rategain.com/our-products/channel-manager/rg-bridge-supply-push/interface-specifications-availability-and-rates-notification-service/operations/availability-notification/ota_hotelavailnotifrq.md).

# OTA\_HotelAvailNotifRQ

The PMS/CRS partner should use the OTA\_HotelAvailNotifRQ message to send updates for availability, inventory, and restrictions. Here are the key points:

* **Single Hotel Update**: The availability of a single hotel can be updated with one message.
* **Multiple Rooms Update**: Availability of multiple rooms can be included in a single message, following the limitations specified in the Reliability Mechanisms and Constraints.

**Usage**:

* The OTA\_HotelAvailNotifRQ message can be used to send inventory count updates separately from status and restrictions updates.


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