The most common reasons are that your listing is not set to instant booking, your property is not in an area Expedia is currently targeting, there is an incomplete or misconfigured integration between your VRBO and Expedia accounts, your listing has missing or inaccurate information that prevents it from syncing correctly, or there is a calendar or rate synchronisation error. Work through the integration checklist in your VRBO account settings and ensure all required fields are complete. If the issue persists, contact VRBO support directly.