Cancel Cal bookings from sent Outlook messages
Close the loop as soon as you send the cancellation.
Trigger
New Sent Message
Triggered when a new message is sent from the Outlook mailbox.
Action
Cancel booking via uid
Cancels an existing and active cal.com booking using its unique identifier (uid).
Why this helps
Sending a cancellation email and updating the booking separately creates avoidable gaps.
- Keep attendee communication and booking status aligned
- Remove a manual admin step
- Reduce accidental no shows
Setup
Build it in a few focused steps.
- 1Connect Outlook and Cal once in Notis.
- 2Create an automation that finds the active Cal booking referenced by a sent cancellation message and cancels it.
- 3Pick New Sent Message as the trigger.
- 4Choose a report channel for cancellation results.
- 5Test it with one real cancellation email and booking uid.
Questions about this workflow
What does Cal need for cancellation?
The action requires the unique booking uid of an existing active booking.
Is cancellation reversible?
The Cal cancellation action is intended for active bookings and should be used only when the message clearly requests cancellation.
When this happens · Trigger
Do this · Action
Supported Triggers and Actions
Notis builds workflows that link Outlook to Cal. A trigger fires from one place; an action lands in another.
Outlook triggers
Cal actions
Recurring trigger
Notis starts this workflow on a schedule, such as daily, weekly, or during business hours.
Add member to team
Adds a new member to a specified team within an organization by creating a team membership.
Webhook trigger
Notis starts this workflow when an external tool or custom backend sends an HTTP request.
Add organization attribute option
Adds a new option to an organization's attribute, requiring a display `value` and a `slug` unique for that attribute.
New Contact Added
Triggered when a new contact is added in the Outlook contacts.
Delete oauth client webhook
Permanently deletes a specific webhook subscription of an oauth client in the cal application, stopping its notifications.
Calendar Event Changes
Triggered when a new calendar event occurs (created, updated, or deleted) in the Outlook calendar.
Cancel booking via uid
Cancels an existing and active cal.com booking using its unique identifier (uid).
New Calendar Event
Triggered when a new calendar event is created in the Outlook calendar.
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.
New Outlook Message
Triggered when a new message is received in the Outlook mailbox.
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.
New Sent Message
Triggered when a new message is sent from the Outlook mailbox.
Check ics feed calendar endpoint
Checks an ics feed url (expected as a query parameter) to verify its validity, accessibility, and icalendar data integrity.
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.
Connect any two apps with Notis in the middle.
Outlook and Cal, or any other combination from 1,000+ integrations.
When this happens · Trigger
Do this · Action
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