Verify if a Microsoft Form has an attachment

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I need to verify if a Microsoft Form was submitted with an attachment.

Here is the attachment option on my Microsoft Form

Here is how I have my Flow setup

Regardless of whether I have an attachment or not, I'm still getting "expression result = false". I'd expect to get a TRUE or FALSE depending on whether I had an attachment on the Form or not.

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abm abm 32,858 Most Valuable Professional on at

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Re: Verify if a Microsoft Form has an attachment

Hi @Anonymous

Happy New Year

Check the length of the attachment response using expression.

The above expression is as follows:

length(body('Get_response_details')?['rfd1b4aaa0a4f441da35ecb4dca0bdf7d'])

This is my run history of Get Response Details:

Thanks

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Community Power Pla... on at

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Re: Verify if a Microsoft Form has an attachment

Thanks @abm, would I then use the expression in the condition? What would that look like?

Thanks!

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abm abm 32,858 Most Valuable Professional on at

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Re: Verify if a Microsoft Form has an attachment

Hi @Anonymous

Thanks for the quick reply. Here I have added a compose action. In your case you can add the expression directly under the If condition under the expression tab next to Dynamic content. See below.

length(body('Get_response_details')?['rfd1b4aaa0a4f441da35ecb4dca0bdf7d'])

If you need any further help please let me know.

Thanks

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Community Power Pla... on at

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Re: Verify if a Microsoft Form has an attachment

@abm I was able to compose the expression successfully, but I don't know where to go from here. Do I put the "outputs" in a condition to check if there's an attachment? I feel like I'm missing the next step.

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abm abm 32,858 Most Valuable Professional on at

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Re: Verify if a Microsoft Form has an attachment

Hi @Anonymous

Yes you can add the output in the condition greater than 0 (Zero).

Or without the compose you can add the expression under the IF statement. See below.

Both should work.

Thanks

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v-alzhan-msft on at

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Re: Verify if a Microsoft Form has an attachment

Hi @Anonymous ,

Please take a try with @abm 's solution and let me know if you have any problem s.

Best regards,

Alice

Community Support Team _ Alice Zhang
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

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Community Power Pla... on at

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Re: Verify if a Microsoft Form has an attachment

@abm This is exactly what I was missing. Thank you so much and Happy New Year :)!

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Community Power Pla... on at

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Re: Verify if a Microsoft Form has an attachment

This helped me fixed my problem also.
Thanks a lot

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jmillar99 23 on at

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Re: Verify if a Microsoft Form has an attachment

Thank you for the time you spend to help people with these questions. Your response helped me as well.

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Nicolas07 42 on at

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Re: Verify if a Microsoft Form has an attachment

Hi @abm ,
I am trying to do the same thing, but I am getting the following error on the condition:

Unable to process template language expressions for action 'Condition' at line '1' and column '27420': 'The template language function 'length' expects its parameter to be an array or a string. The provided value is of type 'Null'. Please see https://aka.ms/logicexpressions#length for usage details.'.

This is how my flow looks like.
It copies responses submitted in a Form into a Sharepoint list. I want it to copy also the attachments (i'm using a parse JSON) in the Sharepoint list too. But if there are no attachments, the Parse JSON fails. So I would like to have the condition to check first if there are any attachments. If yes --> Parse JSON. If not, go to the next step (send email from shared mailbox).

Thanks for your help!!

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