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Power Platform Community / Forums / Power Automate / Required Parameters in...
Power Automate
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Required Parameters in Manual Flows aren't required??

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Posted on by 784 Moderator
One of our manually-triggered Flows has required Parameters, but they aren't behaving like a required Parameter. One would expect that if a required Parameter received a null, that the Flow would fail to execute, and an error be displayed in the calling Flow's 'Run a Child Flow' Action, right? (That's Q1.)
 
Instead, the called Child Flow is executing, and then failing where the parameter is used. And, given that it's required, there's no code trapping for the null value. Are we now expected to edit every single Child Flow and add error trapping for required parameters? (That's Q2.)
 
Have I gone mad, or is this new behavior? (That's Q3) I've created child flows for over 4 years now, and never remember this being the case.
 
Q1. Shouldn't a flow without properly supplied required parameters fail to even execute and an error be displayed within the Calling Flow?
Q2. Is this new behavior?
Q3. Is the remedy really to add error trapping to every single child Flow?
 
P.S. The Categories below are 100% worthless.
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I have the same question (0)
  • Michael E. Gernaey Profile Picture
    53,335 Super User 2025 Season 2 on at
    Hi,
     
    Please share
     
    1. The Flow
    2. A Run where you said it was passed null so we can see what it thinks it received
    3. How you are passing the data (from an app, HTTP trigger, whatever)
     
     
    At this point lol we are probably all mad :-)
     
     

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