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Power Platform Community / Forums / Power Automate / Expression error when ...
Power Automate
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Expression error when running my flow using scheduled task

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Posted on by 42

Hi i am not sure what this error means, or how to fix it, since its so vague, so was hoping someone could please help me.

I have this desktop flow, which works when run locally from power automate, or as a cloud flow, however when I run it from a scheduled flow, i receive the following error

{
 "error": {
 "code": "ExpressionError",
 "message": "Expression couldn't be evaluated. \r\n \r\n"
 }
}

I am not sure what this means, or where the flow seems to get hung up, since this is the only information it provides me.

I don't understand if I can run it successfully from my computer, and the flow says my connector is green, and ok, why is this flow not running?  Any thoughts?

 

My flow is a fairly simple flow which is does the following:

1. open webpage

2. download and save report to network share

3. open excel and convert & save file into correct excel format, then delete original file

4. same process happens for 2 more websites.

  • Minty925 Profile Picture
    2 on at

    Any chance you found a solution for this? I am getting the error and I cant figure out why. 

  • momlo Profile Picture
    1,527 Super User 2024 Season 1 on at

    Are you using input variables in your flow?

    If, yes -  you are passing values to these variables when you run from console/power automate portal, but are you passing them when run from task scheduler?

  • KitSpeck Profile Picture
    4 on at

    Has anyone found a fix for this?  I, too, am having the same issue.  I have tried uninstalling the browser extensions and reinstalling them as well as uninstalling and reinstalling the Power Automate Desktop software.  I am not passing any input variables or anything, but this is happening when trying to populate text into a form field or when trying to send keys to the form field.

  • ugupta Profile Picture
    7 on at

    Happening to us right now when trying to populate text into a field on the webpage. Microsoft Support DOES NOT have an answer for us.

  • PureSpark Profile Picture
    2 on at

    Ran into this issue when invoking a web service. A work around was to delete the old action and recreate it. 

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