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How to add array of email addresses to Send an HTTP request action?

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Posted on by MarcusD1

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I'm trying to build a flow that uses the Send an HTTP request action to create a draft email, and this video does a great job showing how to do it. However, the example only shows how to hard code a single email address into the JSON. I want to dynamically add an array of email addresses, and I can't figure out how to make it work. I tried initializing a variable, then appending it with a loop based on a conditional field that pulls addresses from a SharePoint list. I then sent the variable to a Compose action, and inserted the Compose output into the JSON. I also tried stripping the brackets, changing the double-quotes (around email address) to single quotes... but nothing worked.

I'm typically getting the error message "were unable to deserialize" or "Unable to read JSON request payload. Please ensure Content-Type header is set and payload is of valid JSON format" - depending on what tweaks I make.

Any ideas?

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MarcusD1 271 on at

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Re: How to add array of email addresses to Send an HTTP request action?

Expiscornovus - thanks for that. Here's my updated flow, and it works great.
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Expiscornovus 31,844 Most Valuable Professional on at

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Re: How to add array of email addresses to Send an HTTP request action?

Hi @MarcusD1,

It looks like the outputs format of your array would be something like

"toRecipients": [ { "emailAddress": { "address": ["Pam@contoso.onmicrosoft.com","Michael@contoso.onmicrosoft.com"] } } ]

I believe format for the toRecipients array field needs to be formatted like below.

{ "subject": "Testing Email", "body": { "contentType": "html", "content": "Test" }, "toRecipients": [ { "emailAddress": { "name": "Pam Beesly", "address": "Pam@contoso.onmicrosoft.com" } }, { "emailAddress": { "name": "Michael Scott", "address": "Michael@contoso.onmicrosoft.com" } } ] }