How to change your PMS without losing bookings

Ask an owner why they are still on property management software they complain about weekly, and the answer is almost never “it’s good”. It is “I cannot face moving”.

That fear is rational. Get a migration wrong and you double-book a room, publish last year’s rates, or vanish from a channel for a weekend. But the risk is concentrated in two places, and once you know where it lives you can sequence around it.

The only two things that can really hurt you

Calendars. Two systems both believing they own the same dates is how double bookings happen. Not “unlikely” — it is the default outcome if both are connected to the same channel at once.

Rates. Prices are the one thing that migrate badly and silently. A seasonal rule that does not carry over does not throw an error. It just quietly sells August at February’s price, and you find out in the payout.

Everything else — photos, descriptions, house rules, message templates — is tedious rather than dangerous. If they break you notice immediately and fix them in an afternoon.

The order that works

1. Set up the new system fully, connected to nothing. Property, rooms, rules, descriptions, templates. It should be complete and inert.
2. Load rates and check them against a calendar, by hand. Pick ten dates across the year, including a peak week and a shoulder week, and compare both systems. This is the step people skip and the step that costs money.
3. Import existing bookings. Every future reservation, with guest details and amounts.
4. Move one channel. Not all of them. Disconnect it from the old system, connect it to the new one, and watch it for 48 hours.
5. Move the rest, one at a time, once the first behaves.
6. Keep the old system readable for a month. Do not cancel it the day you finish. You will want to check something.

The vulnerable window is step 4, and it is short. Outside it, both systems can coexist safely because only one is talking to any given channel.

When to do it

Your lowest-occupancy month, mid-week, in the morning. Never the week before a peak season, and never on a Friday — if something goes wrong on a Friday, you are debugging channel support queues over a weekend.

What it actually costs you

Realistically, three to six hours of your attention spread over a week, most of it in step 2 checking rates. Not the multi-day ordeal that people imagine, but not nothing either.

That, in the end, is why so few owners ever move: not because it is hard, but because it is six hours of unpleasant admin with no immediate reward, and there is always something more urgent.

Which is roughly why we include the migration in onboarding. Not out of generosity — because otherwise the good software never gets adopted, and we would be running your listing on a system that fights us.