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Check availability for WhatsApp time selections

Use a customer's quick selection as the cue to check Cal availability, then review the free-busy result before confirming any time.

Trigger

Interactive Reply Received

Triggered when a customer taps a quick-reply button or selects an option from an interactive list message you sent.

Action

Check calendar availability

Retrieves free/busy availability for a specified calendar to aid scheduling without revealing event details; requires an existing, accessible calendar, noting that data granularity can vary.

Why this helps

Time preferences lose value when you have to remember to check the calendar later or reopen several screens to confirm them.

  • Check availability soon after a customer chooses a preference.
  • Reduce memory load around scheduling follow-up.
  • Review free-busy data before making a commitment.

Setup

Build it in a few focused steps.

  • 1Connect WhatsApp and Cal once in the Notis portal.
  • 2Create an automation in the portal or tell Notis to build it from any channel.
  • 3Describe the outcome: when an interactive reply indicates a time preference, check availability on the relevant Cal calendar.
  • 4Choose Interactive Reply Received as the trigger and set the run report destination.
  • 5Test with one real time selection and inspect the availability result.

Questions about this workflow

Does this confirm the customer's selected time?

No. It checks calendar availability and leaves confirmation or booking to you.

What if the selection does not specify a date or time?

The workflow needs enough context to check a meaningful time range. Supply missing scheduling context in your instruction or follow up manually.

When this happens · Trigger

Do this · Action

Supported Triggers and Actions

Notis builds workflows that link Whatsapp to Cal. A trigger fires from one place; an action lands in another.

Whatsapp triggers

Cal actions

Recurring trigger

Notis starts this workflow on a schedule, such as daily, weekly, or during business hours.

TriggerScheduled

Add member to team

Adds a new member to a specified team within an organization by creating a team membership.

ActionInstant

Webhook trigger

Notis starts this workflow when an external tool or custom backend sends an HTTP request.

TriggerInstant

Add organization attribute option

Adds a new option to an organization's attribute, requiring a display `value` and a `slug` unique for that attribute.

ActionInstant

Message Status Updated

Triggers when a WhatsApp message status changes. IMPORTANT LIMITATION: WhatsApp Cloud API does not provide a native polling endpoint for message status. Status updates are ONLY delivered via webhooks in real-time. This trigger cannot directly poll the WhatsApp API for status updates. This trigger will return empty results as WhatsApp does not support this operation. To track message status updates, you must: 1. Set up a webhook endpoint to receive status notifications from WhatsApp 2. Store the webhook data in your own database 3. Use a different mechanism to query your stored webhook data For more information, see: - https://developers.facebook.com/docs/whatsapp/cloud-api/webhooks

TriggerPolling

Delete oauth client webhook

Permanently deletes a specific webhook subscription of an oauth client in the cal application, stopping its notifications.

ActionInstant

New Message Received

Triggered in real time when your WhatsApp Business number receives an inbound message from a customer (text, media, location, or contact). Delivered via the Cloud API webhook.

TriggerInstant

Cancel booking via uid

Cancels an existing and active cal.com booking using its unique identifier (uid).

ActionInstant

Interactive Reply Received

Triggered when a customer taps a quick-reply button or selects an option from an interactive list message you sent.

TriggerInstant

Check calendar availability

Retrieves free/busy availability for a specified calendar to aid scheduling without revealing event details; requires an existing, accessible calendar, noting that data granularity can vary.

ActionInstant

Message Template Status Update

Triggered when the review status of a WhatsApp message template changes — for example approved, rejected, or flagged — on your WhatsApp Business Account.

TriggerInstant

Check gcal synchronization status

Call this read-only action to verify the connection and synchronization status of a user's google calendar integration with cal.

ActionInstant

Check ics feed calendar endpoint

Checks an ics feed url (expected as a query parameter) to verify its validity, accessibility, and icalendar data integrity.

ActionInstant

Check Stripe status

Verifies if stripe is correctly connected to the cal scheduling system and functional for processing payments, reporting only on the integration's status.

ActionInstant

Connect any two apps with Notis in the middle.

Whatsapp and Cal, or any other combination from 1,000+ integrations.

When this happens · Trigger

Do this · Action

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