At a glance
| PMS | Channel manager | Booking engine | |
|---|---|---|---|
| Main job | Run operations and billing | Sync rates and availability with OTAs | Take direct bookings online |
| Used by | Front desk, housekeeping, accounts, managers | Revenue or reservations manager | Guests |
| Holds | Inventory, reservations, folios, reports | Channel mappings and message log | Search, checkout and deposit flow |
| Money | Folio, taxes, payments, night audit | None directly | Deposits through a payment gateway |
| Without it | No shared record of rooms and money | Manual updates on every OTA extranet | Bookings only by phone, email or OTA |
How they fit together
The PMS is the source of truth. The channel manager and the booking engine both read availability and rates from it and write reservations back into it. When the three are separate products from different vendors, the connections between them are where double bookings and missing reservations usually come from.
Do you need all three?
- Walk-ins and phone only — a PMS is enough.
- Selling on your own website — PMS plus booking engine.
- Selling on one or more OTAs — PMS plus channel manager, and a booking engine to win direct bookings back.
One system or three?
Separate best-of-breed products give more choice but more integrations to maintain and more places for data to disagree. An all-in-one system keeps one calendar and one set of rates, at the cost of choosing a single vendor.
How bedsKey handles all three
bedsKey includes the PMS, the channel manager and the direct booking engine in one system, together with a hotel website builder. Direct bookings use the same path a clerk uses, so the database-enforced no-double-booking guarantee holds, and channel bookings arrive as real reservations with safe retries. The channel manager has certified OTA connections, each sandbox-tested before go-live.