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Power Platform Community / Forums / Power Automate / Condition to check if ...
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Condition to check if received email is a reply

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Posted on by 6
To track requests for changes to database records, I created a flow that creates a new task on a specific planner shared by my team. A new task is created whenever an email with the Subject "Record Update" is received to my inbox. The problem is that sometimes I (or my supervisor) will respond to the email with a question and when then the original sender replies again and their response will trigger the flow to create a new task because technically a new email with the specified subject line has been received. The solves I've found for this issue use a condition that checks if the subject begins with "Re:" but replies in my inbox don't get the "Re:" prefix automatically added to them so that solution doesn't work here.
 
Anyone know other ways to identify if an email is a reply that don't require a changed subject line? Is there a way to check if a task has already been created for the same ConversationID? How would I do that?
 
Screenshot of flow attached in case that is helpful.
 
Thanks!
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  • Verified answer
    trice602 Profile Picture
    16,298 Super User 2026 Season 1 on at
    Hi there!
     
    Those pesky replies are always a challenge.  Here's what seems to work:
     
    Use a trigger condition (vs a standard condition action) to prevent your flow from triggering at all on replies.
     
    contains(triggerOutputs()?['body/bodyPreview'], 'wrote:')
     
    This works because replies will include the text 'wrote:' and you will know it is a reply.
     
    One other popular option is to ask your supervisor to stop replying to automated messages jkjk.
     
    As the old saying goes.... works in testing.
     

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  • crh828 Profile Picture
    6 on at
    @trice602 That's a genius solution! Unfortunately, after I copied the string you shared into the trigger condition, I wasn't able to save the flow because an error kept appearing. Flow checker didn't flag any issues and it's a standard 400 status code. I checked that my connections are all good. So, nny ideas?
  • Suggested answer
    CU30121719-0 Profile Picture
    on at
    Yes. Check PR_INTERNET_REFERENCES (0X1039) MAPI property:
     

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