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Power Platform Community / Forums / Power Automate / Identifying Cancelled ...
Power Automate
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Identifying Cancelled Events using "When Event is Modified" Trigger

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I have a flow that will automatically accept events when certain criteria is met, which works great when the change is a new meeting or an update.  However, when a meeting is cancelled, and acceptance isn't a valid response I get an error.
 
I would be OK with updating the condition, but I can't find a way to identify the event update is a cancellation.  Is there a parameter of status what would work for this?
 
Also, if I wanted to automatically process the removal is there a way to handle that response? If not, I know if I can identify the event is a cancellation I could easily just delete the event.
 
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  • narayan225 Profile Picture
    2,547 Super User 2025 Season 2 on at
    You can use a Get event action to check if the event was cancelled.
     
    If you get 404 not found error message, that means the event is cancelled.
    If not you can respond to the event.
     
    This is how you can do it:
    Hope this helps.
    Cheers!
  • creativeopinion Profile Picture
    10,502 Super User 2025 Season 2 on at
    @MarcRohde Have you considered using the When an event is added, updated or deleted (V3) trigger? You can check to see if an item is:
    • added
    • updated
    • deleted
     
     
     
    When using automated triggers for your flow, it's always best practice to add trigger conditions. This way your flow will only trigger when you want it to.
     
    To learn more about Trigger Conditions, check out this YT Tutorial:
     
    If you are using an Automated Cloud flow trigger in your flow—you need to consider adding trigger conditions.
    Do YOU 🫵 know what a trigger condition is?
     
    Trigger conditions can be set in most flow triggers. These conditions you set must be true for the trigger to fire.
    In this Power Automate tutorial, I’m going to show you how to use trigger conditions in your flows to control when your Power Automate flows trigger. If your plan has flow run limits—you can avoid triggering your flows unnecessarily by using trigger conditions.
    I’ll cover four different flow examples that would benefit from trigger conditions:
     
    ⚡️ Triggering a flow when a column is changed to a specific value
    ⚡️ Triggering a Flow When an Event Updated or Deleted
    ⚡️ Triggering a Flow When a New Folder is Created
    ⚡️ Triggering a Flow When a Specific Email is Received
    I’ll also show you a trick on how to easily create the expressions needed and give you a few tips on how to troubleshoot your flow.
     
    IN THIS VIDEO:
    ✓ Four different flows that would benefit from trigger conditions
    ✓ What is a trigger condition?
    ✓ How to add a trigger condition to your flow
    ✓ How to trigger a flow when a column is changed to a specific value
    ✓ How to trigger a flow when an event is updated or Deleted
    ✓ How to trigger a flow when a new folder is created
    ✓ How to trigger a flow when a specific email is received
    ✓ How to troubleshoot a trigger condition
    ✓ How to prevent case sensitivity issues with a trigger condition
    ✓ How to use the filter array action to easily compose an expression that can be used in a trigger condition

     
    Hope this helps!

    Consider giving me a ❤️ if you liked my response!

    👉 Level up your Power Automate skills by checking out my tutorials on YouTube
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