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Power Platform Community / Forums / Power Automate / How to get power autom...
Power Automate
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How to get power automate flow only to activate when a yes/no column is changed

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I have a yes/no column and a column tracking the historyof when that is changed from yes to know or vice versa in a SharePoint list. How can I get this flow to only run if a change occurs. If I could differentiate the change from yes and the change from no that would be even better.
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  • creativeopinion Profile Picture
    10,508 Moderator on at
    @ecombs You'll need to use a trigger condition.
     
    For testing purposes, create a flow with the When an Item or File is modified trigger and a single Compose action. A flow needs at least one trigger and one action to run.
     
    In the Compose action insert the dynamic content from the Yes/No column.
     
     
    In the flow trigger, click on the three dots and select Settings. Insert a trigger condition. 
     
    @or(equals(triggerOutputs()?['body/[replace with your internal column name]'], true), equals(triggerOutputs()?['body/[replace with your internal column name]'], false))
     
    My internal column name is YesNo. Keep in mind that the internal column name may not always match the name displayed in your Sharepoint list. Not sure how to write a filter query? Check out this YT short.
     
    My expression is:
    @or(equals(triggerOutputs()?['body/YesNo'], true), equals(triggerOutputs()?['body/YesNo'], false))
     
     
    If you aren't familiar with Trigger Conditions, you might be interested in the YT Tutorial linked below. I cover how to build the trigger condition expression by using a Filter Array action. 
     
     
    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!

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  • Suggested answer
    tom_riha Profile Picture
    10,187 Most Valuable Professional on at
    Hello,
     
    to track changes in a column you'd need an extra "backup" column where you store the original value - if there's a difference trigger the flow and synchronise them again. If they're the same don't trigger the flow, as explained in this article.
     
    To decide whether to trigger the flow I'd use a trigger condition, it is then quite easily created using the Filter array action trick.

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