continuing-cyan•3mo ago

Google Calendar Check Availability tool issue

Google calendar check availabilty tool is not working. I'm talking about the built in VAPI tool. When a slot is booked at a given time , it still says in the assistant that the slot is available. I have cross checked the time zones. Has anyone faced this issue before ? I have attached screenshots for reference. Any response will be very appreciated. The calendar ID is inputted properly as well

4 Replies

Vapi•3mo ago

Suggestion: Double-check that the calendarId used in your Check Availability tool matches the calendar where the appointment is booked. In your tool configuration, explicitly set the calendarId parameter to the correct value—here’s an example:

{
  "calendarId": "your-calendar-id",
  "startDateTime": "2025-08-07T18:00:00",
  "endDateTime": "2025-08-07T19:00:00",
  "timeZone": "Asia/Dhaka"
}

{
  "calendarId": "your-calendar-id",
  "startDateTime": "2025-08-07T18:00:00",
  "endDateTime": "2025-08-07T19:00:00",
  "timeZone": "Asia/Dhaka"
}

If the issue persists, try re-authorizing the Google Calendar integration in the Vapi Dashboard to ensure proper sync. Source: - Google Calendar Integration Documentation

⤵️ Mention @Vapi Support Bot for follow-ups 🐥

Shubham Bajaj•3mo ago

Hey, Could you provide the call ID where you experienced this issue? We want to review the logs to identify the cause.

continuing-cyanOP•3mo ago

6800ed3f-260d-424f-9719-aa2252bd0969 1e095ad9-8693-4b29-8b1d-0ab66cd421bf

Shubham Bajaj•3mo ago

We apologize for the late response, but it seems that we are unable to find your call id. Do you happen to have a more recent one? Also for configuring the calendar tool and getting the correct dates, Please insert this code snippet anywhere into your assistant prompt to provide correct date and times. Modify the timezone as needed:

The current date and time is {{"now" | date: "%A, %B %d, %Y, %I:%M %p", "America/Los_Angeles"}}

The current date and time is {{"now" | date: "%A, %B %d, %Y, %I:%M %p", "America/Los_Angeles"}}

More information on this can be found on the documentation: https://docs.vapi.ai/assistants/dynamic-variables#advanced-date-and-time-usage

Google Calendar Check Availability tool issue

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