Form - Empty field check on Flow

[Shinmaru]

Hello, 

I can't figure out how to check if a field in a Microsoft Form (generic text field) is empty. 

My goal is: 

When a form is completed, Flow send a mail to a specified mail adress, which contain the content of the form.

It should look like:

But i want to add a formula, that check IF the field (let's say Field N°3) wasn't filled by the user, and if so, don't write the mail "Answer for field N°3"

So, the mail will not be full of "Answer N°X" with a blank space under, but only for the field that was filled. 

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I'm pretty new in Flow, and i'll take any possible clue as answer. 

Regards. 

Shinmaru

[abm]

Hi @Shinmaru 

Check this post

https://faustocapellan.com/2017/10/25/check-for-null-value-using-flow/

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Thanks

[Shinmaru]

Hello, 

And thanks for the answer and the time you dedicated to me. 

Unfortunately, this does not answer my problem, i mean, it's a possible answer, but since the "Edit in advance mode" option doesn't exist anymore, is there any equivalent for the "coalesce" function in Dynamics Formula? (Can't find any)  

Or else, is there any other way to check if a field from a Forms is blank in Flow? 

Regards, 

Shinmaru. 

[abm]

Hi @Shinmaru 

Yes can't see the advanced mode so what I did is add a compose action and map the the response. See the code view of compose step.

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Thanks

[abm]

Hi @Shinmaru 

If the below reply has answered your question or solved your issue, please mark this question as answered. Answered questions helps users in the future who may have the same issue or question quickly find a resolution via search. If you liked my response, please consider giving it a thumbs up.

Thanks

[Shinmaru]

And once again, thanks for the dedicated time. 

I get how to insert the "compose" step. But can't figure 2 things. 

- First one: In your picture, what exactly is in your condition?
Why the "Question 1" is in the left box, and what is exactly the function in the right box.
Shouldn't you compare the output of your "Compose" step to true? Like below.

- Second one: 

Why, in the "Compose" step, in your picture, it shows "Question 1" that give you this code, while, on my side, when i set this code, it doesn't transform graphically in the box of the field i want to check. 

Same result if i try it in reverse, if i set my question first, it doesn't set the same code: 

Regards, Shinmaru