Book API

Overview

UltraDirect supports session control for all booking transactions. This means the hotel CRS (Central Reservation System) will temporarily hold booking, modification, and cancellation requests until a subsequent request to complete or ignore the action is received and processed.

Affiliate partners (demand partners integrating with RateGain) can choose between active or passive participation in session control:

1. Active Participation:

   • The affiliate sends two messages per transaction: one to initiate the booking, modification, or cancellation and another to complete (commit) or ignore the transaction.

   • A transaction is only finalized when it is committed. Consequently, the confirmation number or cancellation number is returned only in response to a commit transaction.

2. Passive Participation:

   • RateGain automatically sends the commit or ignore message to the CRS on behalf of the affiliate.

   • The affiliate sends only one request message per transaction and receives the confirmation or cancellation number directly in the response.

Note: This document focuses exclusively on the passive mode of session control. In the case of RateGain Pull connectivity, RateGain handles the commit or ignore message to the CRS on behalf of the affiliate. Therefore, affiliates only need to send a single request message per transaction to receive the confirmation or cancellation number.