# Interface Specifications – Reservation Notification Service

## Overview

**RG Bridge Services for PMS Integration** is a comprehensive suite of services available to RateGain partner organizations. These services facilitate the integration of Property Management Systems (PMS) with the Channel Manager.

**RateGain's Channel Manager**:

* A premier channel management system for distributing Availability, Rates, and Inventory (ARI) to Internet Booking Agents (OTAs) and collecting reservations from them.
* Trusted by some of the world’s most renowned hotels and hotel chains.

**Functionality**:

* **PMS to Channel Manager**: As availability and rates change in the PMS, updates are pushed to RezGain. RezGain processes these messages and pushes updates to the subscribed OTAs.
* **Reservations to PMS**: Reservations retrieved by the Channel Manager are sent to the PMS.

**Documentation Scope**:

* **Part 1**: Specifies the interface that RateGain's Channel Manager makes available to PMS to push ARI updates.
* **Part 2**: Details the interface that PMS needs to provide to the Channel Manager for pushing reservations and obtaining confirmation numbers.

<br>

<figure><img src="/files/ONW3kKhrAw0x1MaVxiZE" alt=""><figcaption></figcaption></figure>


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://developer.rategain.com/our-products/channel-manager/rg-bridge-supply-push/interface-specifications-reservation-notification-service.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.