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Update task flow not working consistently

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Posted on by Mattncan1

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Hi everyone,

I'm seeking some help with a Power Automate flow that's failing to update Planner tasks. The flow reports success, but the changes (specifically, updates to the task notes/description) are not reflected in Planner.

Here's what I've observed:

Successful API Response: The "UpdateTaskDetails_V2" action reports success and returns a seemingly complete response in the "Parse JSON" action.
Missing Description Update: However, the updated task in Planner still has a blank notes section. Analyzing the response reveals that the "hasDescription" field is set to "false," even though the flow is trying to update the description.

What I've tried already:

Double-checked the flow logic for accuracy.
Manually inspected the API response for any hidden clues.
Tested updating other task details (title, due date, etc.), which work successfully.
Tested a different flow that uses the same Update task and found that it did enter the description into the notes section of the task.

I'm hoping for some insights from the community on:

Possible reasons why the description update might be failing.
Additional troubleshooting steps I can try.
Alternative approaches to update task descriptions with Power Automate.
Any similar experiences and how you resolved them.

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Mattncan1 4 on at

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Re: Update task flow not working consistently

To better explain the flow. I have users who fill out a form requesting a job. The information from that form is then fed into a SharePoint list that this flow pulls from. I have a separate flow for each request type, and for some reason, this is the only one that doesn't go back in and update the notes section of the task in Planner with the job description.
Mattncan1 4 on at

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Re: Update task flow not working consistently

Here are the images. Let me know if I missed anything and thank you for your help.
ManishSolanki 15,085 Super User 2025 Season 1 on at

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Re: Update task flow not working consistently

Hi @Mattncan1

Could you pls share the screenshot(s) of entire flow in edit mode with details of input parameters set in each action?

Thanks

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