Real-Time Two-Way Distribution

Two-Way OTA Channel Manager

Sync live room inventory, tariffs, and restrictions automatically across the world's leading Online Travel Agencies with zero manual extranet logins.

Direct Extranet Connections

Supported Online Travel Agencies

Instant two-way ARI (Availability, Rates, and Inventory) synchronization across global channels.

Booking.com
Live ARI Sync
Expedia
Live ARI Sync
Agoda
Live ARI Sync
Airbnb
iCal & Webhooks
Trip.com
Live ARI Sync
Vrbo
Live ARI Sync
Zero Overbooking Guarantee

How Channel Manager Eliminates Double-Bookings

When a traveler reserves a room on Booking.com, your Grand Horizon channel manager captures the webhook in milliseconds, reserves the room in your PMS room grid, and updates remaining availability across Expedia, Agoda, and Airbnb automatically.

  • Sub-Second Webhook Ingestion:
    Inbound reservations instantly generate guest folios, allocate room numbers, and lock inventory.
  • Centralized Rate Parity & Markups:
    Push base rates globally or apply percentage rate markups per channel to offset commission fees.
  • Automated Stop-Sell & Min Stay:
    Enforce minimum 2 or 3-night restrictions on holiday weekends and close channels when rooms are low.
Real-time Channel Sync Log
Live Stream
[15:42:01.120] 200 OK - Booking.com ARI Push: 25 rooms inventory synced.
[15:42:01.450] 200 OK - Expedia ARI Push: Weekend rate multipliers updated.
[15:42:02.010] 200 OK - Inbound Webhook: Reservation #BK-9921 received for Room 102.
[15:42:02.190] 200 OK - Agoda & Airbnb: Inventory decremented to 7 available.
Simplicity by Design

4-Step Extranet Mapping Architecture

Connect your properties to Online Travel Agencies in four straightforward steps.

1
Enter Extranet Keys
Enter your hotel credentials from Booking.com or Expedia Partner Central.
2
Map Room Types
Match your PMS categories (e.g. Deluxe King) to the channel's room codes.
3
Set Pricing Rules
Apply standard BAR rates, meal plans, or percentage OTA commission offsets.
4
Initiate Full Sync
Click push to broadcast 365 days of availability and rates globally.
Channel Manager Technical Specifications
Sync Protocol Two-way RESTful JSON and OTA XML 2014B Standards
Average Sync Latency Sub-Second (< 250 milliseconds)
Forward Sync Window Up to 730 days (2 Full Years) in advance
Supported Rate Plans BAR (Best Available Rate), Non-Refundable, Meal-Inclusive, Corporate, and Promotional
Restriction Enforcements Minimum Stay, Maximum Stay, Closed to Arrival (CTA), Closed to Departure (CTD), Stop-Sell
Security & HMAC Authentication SHA-256 HMAC Webhook Signatures, IP Whitelisting, and 256-bit TLS Encryption