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Fix Power Automate Bookings Cancellation Action Not Triggering

Maira Mehtab Sep 22, 2026 869 views

Question details

The user is experiencing an issue where the Microsoft Bookings cancellation action fails to trigger in Power Automate, despite the creation and update actions working correctly.

Product: Microsoft Power Automate
Device & OS: not provided
Scenario: Automating Microsoft Bookings workflows using Power Automate to handle appointment cancellations.
Observed behavior: Creation and update actions trigger the flow successfully, but the cancellation action does not trigger when an appointment is canceled in Bookings.

Before you start

Ensure you have administrator access to both the Microsoft Bookings calendar and the Power Automate environment to manage connections and flow configurations.

Solution 1Recommended

Verify Trigger Configuration and Account Permissions

Ensure the flow is set up correctly with the right administrative permissions to detect cancellation events.

Often, flows fail to trigger on specific events if the account used to authorize the connection lacks sufficient permissions on the target application.

Edit your flow

Navigate to your Power Automate dashboard, locate the affected flow, and open it in Edit mode.

Check trigger parameters

Click on the Bookings trigger step at the top of your flow and verify that the trigger event specifically includes 'Cancellation'.

Verify account permissions

Confirm that the Microsoft 365 account authenticating the Bookings connection has administrator rights for the specific Bookings calendar you are monitoring.

Solution 2

Refresh or Recreate the Bookings Connection

Stale connections can cause triggers to silently fail. Re-authenticating the connection often resolves communication issues between Bookings and Power Automate.

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Frequently Asked Questions

Why do creation actions work but cancellations do not in Power Automate?

This usually happens because the connection token became stale or the specific permissions required to read cancellation events are missing from the connected account. Refreshing the connection often resolves this discrepancy.

How can I test my Bookings cancellation trigger manually?

You can use the 'Test' feature in the top right corner of the Power Automate flow editor, select 'Manually', and then cancel a test appointment in your Bookings calendar to see if the flow catches the event and processes the next steps.

Where can I find more help if my Power Automate flows keep failing?

If standard troubleshooting fails, you can export your flow setup and ask for help in the official Microsoft Power Automate Community forums, where experts can review your specific logic and error details.

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