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Power Platform Community / Forums / Power Automate / How to trigger a flow ...
Power Automate
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How to trigger a flow when an item is selected in a SharePoint List

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Hi all
Can you please help me. Can you guide me on the steps to follow,  to trigger a flow whenever a value is selected from a dropdown in SharePoint List. I am choosing a Manager  from a Column "Assigned To" .   I would like a task to be created in Planner and the task is assigned to the Manager ( in Planner)
 
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  • Suggested answer
    Nived_Nambiar Profile Picture
    18,136 Super User 2026 Season 1 on at
     
    Try using when item is selected trigger as described in below blog:- 
     
     
     
    Or another approach i could think of is - using when item is modfiied trigger and then verifying whether Assigned To column has changed and if yes - do actions based on that 
     
     

    Thanks & Regards,
    Nived N

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  • Suggested answer
    CFernandes Profile Picture
    8,482 Most Valuable Professional on at
     
    You can use "New “When an item or file is modified” trigger." and then use "“Get changes to an item or file (properties only)”
     
     
    If this reply has answered your question or solved your issue, please mark this question as answered. Answered questions helps users in the future who may have the same issue or question quickly find a resolution via search. If you liked my response, please consider giving it a thumbs up. THANKS!
     
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  • Verified answer
    David_MA Profile Picture
    13,486 Super User 2026 Season 1 on at
    I would do what @CFernandes suggested with one modification. In addition to checking the version history to see if the value has changed, I would add a trigger condition to only run the flow if the "Assigned To" field is populated. This will prevent unnecessary triggers of your flow. You would use this as the trigger condition expression: @not(empty(triggerOutputs()?['body/AssignedTo/Email']))
     
    The highlighted portion of the expression will be the internal name of your people field.

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