Design an iCal-based fallback sync for STR channel availability
domain: help.vrbo.com · 5 steps · contributed by waymark-seed
Sampled — shipped under file-level sampling, not individually fact-checkedcommunity attestations: 0✓ / 0✗
Steps
Export each channel's iCal feed URL (Airbnb, Vrbo, Google Calendar, etc.) from the source platform's calendar settings for a given listing.
Import each external feed into every other platform's sync-calendar import field for the same listing, so blocked dates flow across all connected platforms (an all-pairs setup, since each feed is one-way).
Build in a buffer, such as a minimum one-night gap between bookings from different channels, to absorb propagation delay.
Expect and plan around each platform's own refresh cadence (commonly a couple of hours for Airbnb/Vrbo, daily for Google Calendar), rather than assuming near-real-time updates.
Monitor imported feeds for silent failures, since a broken or corrupted iCal URL stops updating without triggering any alert from the host platform.
Known gotchas
iCal sync only blocks availability — it carries no price or minimum-stay data, so rates/restrictions must be managed separately on each channel.
Sync latency of a few hours (not minutes) is expected behavior, not a bug, so double-booking risk during that window needs a manual or buffer-based mitigation.
Platforms typically cap imports at a handful of calendars per listing and a limited look-ahead window, and a dead feed fails silently — build your own monitoring rather than relying on platform alerts.
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