Keeping your calendar synchronized across multiple booking platforms is essential for managing your rental property efficiently. By connecting your Holidu calendar with other booking channels through iCal synchronization, you can prevent double bookings, maintain accurate availability, and streamline your booking management across all platforms.

Supported Channels and Calendars

Holidu supports iCal synchronization with a wide range of popular booking platforms and calendar services. Before you begin the setup process, check whether your platform is listed below to ensure compatibility.

Provider	iCal Sync Status
Admin	Supported
Abritel	Supported
Airbnb	Supported (365-day limit — bookings beyond that need a manual block)
Atraveo	Supported
Avaibook	Supported
Avantio	Supported
Booking.com	Supported — tick "Booked + Closed dates" in your Booking.com export settings
FeWo-direkt	Supported
Feratel	Supported
Fewomanager.de	Supported
Icnea	Supported
Iperbooking	Supported
Menorca Vacations	Supported
Mister B&B	Supported
Octorate	Supported — export only (one-way)
TouristManager - LTS	Supported
VRBO / HomeAway	Supported
Wimdu	Supported
Google Calendar	Supported — refreshes approximately once per day, slower than other channels
Outlook / iCloud Calendar	Not tested — sync is not confirmed to work
Smoobu	Supported
Wubook	Supported — export only (one-way)
KrossBooking	Supported
Amenitiz	Supported
Expedia	Supported
Eviivo	Supported
Fincallorca	Supported
Homerti	Supported
Ruralidays	Supported
SECRA	Supported
Spain-Holiday	Supported
Your Rentals	Supported
Gites.fr	Supported
Rentals United	Not supported
Kigo	Not supported
TripAdvisor	Not supported
Siteminder	Not supported
Homerez	Not supported
Belvilla	Not supported

If your calendar provider is not listed above, contact your external provider to confirm they support two-way iCal synchronization. We recommend testing the connection manually by creating a block on each calendar to verify the sync works correctly.

Disclaimer: We cannot guarantee compatibility with every external iCal calendar. Always verify that the sync works as expected for your specific setup.

How to Import and Export an iCal Calendar

The import and export process is the same whether you are setting up your first synchronization or adding an additional one. Follow these steps to connect your calendars:

First-Time Setup

1. Log in to your Holidu account and select your property.
2. On the left-hand side under Configuration, scroll down and click on iCal & Synchronization.
3. Click on Configure.
4. Select the name of the channel you want to sync from the list of options.
5. Proceed to the import and export steps below.

Adding an Additional Synchronization

1. Log in to your Holidu account and select your property.
2. On the left-hand side under Configuration, scroll down and click on iCal & Synchronization.
3. Click on Add new synchronization.
4. Select the name of the channel you want to sync from the list of options.
5. Proceed to the import and export steps below.

Import and Export Steps

1. In a separate window, log in to the other booking channel and locate the iCal synchronization options. Find and copy your iCal URL (export link).
2. Return to your Holidu account on the iCal & Synchronization setup screen.
3. In Step 1 – Import: Paste the iCal URL from the other provider into the Address of iCal field.
4. In Step 2 – Export: Copy the Holidu iCal URL that is displayed.
5. Log back into the other booking platform and paste the Holidu iCal URL into their iCal import section.
6. Return to Holidu and click Save to complete the synchronization setup.

Important Notes About Booking.com, Airbnb, and VRBO

Booking.com

To ensure that both confirmed bookings and manual blocks sync correctly with Holidu, you must configure your Booking.com export settings properly. When exporting your iCal calendar from Booking.com, tick the box for Booked and Closed Dates. This setting ensures that all unavailable dates are communicated to Holidu, preventing accidental double bookings.

For detailed instructions, refer to the Booking.com iCal help article: https://partnerhelp.booking.com/hc/en-gb/articles/115005213509-How-can-I-connect-my-Booking-com-calendar-to-other-calendars-

Airbnb

Airbnb's iCal synchronization has a time limitation that you should be aware of. The Airbnb iCal feed supports synchronization only from today through the next 364 days. Any dates beyond this 365-day window will not be synced to Holidu. If you have bookings that extend beyond this period, you will need to manually create a block in Holidu to mark those dates as unavailable.

For more information, visit the Airbnb iCal help article: https://www.airbnb.com/help/article/99

VRBO

VRBO supports two-way iCal synchronization with Holidu. Ensure that your iCal URL is correctly configured in both your VRBO account and your Holidu account to maintain accurate availability across both platforms.

For detailed instructions, refer to the VRBO iCal help article: https://www.vrbo.com/en-gb/help/articles/How-do-I-sync-my-HomeAway-calendar-with-another-calendar

Troubleshooting Tips

Calendar Sync Not Working

If your calendars are not syncing as expected, start by verifying that the iCal URLs are correct. Copy the URL directly from your external provider without any typos or extra spaces. Even a small error in the URL can prevent the synchronization from functioning.

Updates Not Appearing Immediately

Calendar updates may not appear instantly across all platforms. If you have just created a block or made a change and do not see it reflected immediately, click the green Refresh button in your Holidu iCal & Synchronization settings. The system may take several minutes to process and display the changes on all connected calendars.

Manual Testing

The most reliable way to verify that your calendar synchronization is working correctly is to perform a manual test. Create a block (unavailable date) in one calendar and check whether it appears in the other within a few minutes. If the block syncs successfully, your setup is configured correctly. If it does not appear, review the iCal URL and re-check your configuration settings.

Specific Platform Issues

If you are syncing with Booking.com, confirm that you have enabled the Booked and Closed Dates export setting. For Airbnb, remember that only dates within the next 365 days will sync. If you are syncing with a platform that offers one-way export only (such as Octorate or Wubook), ensure you understand that changes made in Holidu will not update in the external calendar.

Learn More with Video Guide

For a visual walkthrough of connecting your Holidu calendar with Airbnb, watch this helpful video guide: https://embed.app.guidde.com/playbooks/qkZznseEfa3DK9axTkUE42?mode=videoOnly

This video demonstrates the step-by-step process and shows exactly where to find each setting, making setup even easier for first-time users.