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The template function 'IfError' is not defined or not valid.'.

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Posted on 12 Jul 2024 12:17:15 by federico-eu-lu

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I'm trying to use the IfError function:

Error, IfError, IsError, and IsBlankOrError functions - Power Platform | Microsoft Learn

It's quite unclear to me what I should enable since I don't see anything related:

I cannot find that feature in Power Automate. I could only find it in my Power App that contains my Flow. Should I do something to enable it? Thanks.

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federico-eu-lu 18 on 12 Jul 2024 at 13:49:02

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Re: The template function 'IfError' is not defined or not valid.'.

For the coalesce, I'm not sure if I used it well:
But I still got a similar error, I am sending a 0?, but it's considered as a null?:

So probably, what I'm doing is wrong?:
coalesce(null, variables('Apps')?[items('Apply_to_each_4')?['centsys_name']], 0)
Any idea?
federico-eu-lu 18 on 12 Jul 2024 at 13:30:52

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Re: The template function 'IfError' is not defined or not valid.'.

Perhaps, I'm using the empty function wrong, but this is what I did:
I just took out the part that could cause the formatting issue and the issue persists. Any idea why the new error is?

It seems it doesn't work for nulls the empty one. The length would be strange, to be honest.
Expiscornovus 31,652 Most Valuable Professional on 12 Jul 2024 at 13:14:58

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Re: The template function 'IfError' is not defined or not valid.'.

Hi @federico-eu-lu,

You could for example use an empty or a coalesce function and combine it with an if function. Even a length function should be possible.
federico-eu-lu 18 on 12 Jul 2024 at 13:05:34

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Re: The template function 'IfError' is not defined or not valid.'.

Any suggestion on how can I do a try-catch then? Or How can I validate if it's null? I have tried so far:
Add it in a scope fails.
Move the item to a variable since it can be null or an integer, so, I store it on an object, but it fails to cast it later.
Try to validate if it's null and then try to cast it fails.
Try to use the IfError fails.
So, I cannot find any efficient way to make it work. I need just something simple, if the formula fails because it can return a null from the previous operation, it should be able to skip or use the previously stored value. Thanks.
Expiscornovus 31,652 Most Valuable Professional on 12 Jul 2024 at 12:51:57

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Re: The template function 'IfError' is not defined or not valid.'.

Hi @federico-eu-lu,

IfError is an PowerFx function. Power Automate cloud flows use a different expression language. That expression language doesn't have an IfError function.

You can find the list of functions over here:

https://aka.ms/logicexpressions

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