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Combine multiple arrays as attachments in a Send an email (v2) action

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Posted on by NC-21080606-0

I would like to combine 2 arrays in the attachments section of a Send an Email (V2) action in my flow. The first array is "varPDF" which is a word document that is saved on OneDrive and is convert to PDF. The word document is populate from a template and pulls information from a SharePoint List item. The second array is "varAttachments" where it loops through the record that was selected in a PowerApps gallery and attaches all images to the array.

The flow works when I attach just a single array to the Send an Email (V2) action, but I need to attach both arrays so the PDF and all attachments from the record are in the email.

This is the error I get when attaching both arrays. See error message below.

See attached for more information from my flow.

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Building flows

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Michael E. Gernaey 53,329 Super User 2025 Season 2 on at

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Hi

The message is pretty clear. That the Value you are providing is not an Array its a string. So please share the full value of varPDF and varAttachments and we can help you :-)

Thanks!

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NC-21080606-0 18 on at

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I figured it out!

All I did was add a Compose action with a union function.

union(variables('varPDF'),variables('varAttachments'))

Then in the attachments section of the email I inputted the outputs of the Compose action.

Hope this helps someone!

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