How to stop double bookings between Airbnb, Booking.com and WhatsApp
Last updated 11 Nov 2026
A double booking happens when two guests book the same property for overlapping dates, usually because two calendars are not talking to each other. It costs you money, damages reviews and wastes time. Calendar sync with iCal is the simplest way to prevent it.
What iCal sync does
Every Airbnb and Booking.com listing can produce an iCal link, a web address that lists the dates that are booked. Another calendar can read that link and block the same dates. Updates are not instant. They happen on a schedule, so there can be a short delay.
Step by step
- Copy the iCal export link from each Airbnb and Booking.com listing.
- Paste each link into the property in Makanzaa. It imports the blocked dates on a schedule.
- Copy the export link Makanzaa gives for that property.
- Add it as an imported calendar in the other platform, so WhatsApp and walk-in bookings block it too.
- Add every direct booking in Makanzaa straight away. The app refuses overlapping bookings for the same property.
Tips
- Enter WhatsApp bookings immediately, before replying to the guest to confirm.
- Check the calendar daily for new blocked dates.
- Remember that iCal is not instant. For very busy properties, block the dates on the platform as well.
Frequently asked questions
Is iCal sync instant?
No. Platforms refresh imported calendars on their own schedule, so there may be a delay of minutes or hours. Enter direct bookings straight away.
Do I need an API connection to avoid double bookings?
No. iCal sync handles most small and medium managers. API connections add faster updates and extra features, and need platform approval.
Try Makanzaa with your own properties
Join the two-month pilot. No setup fee, and we help you import your properties and train your team.
Create your account