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Send HTTP request as user

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Posted on by MaartenVanhulst

Hello,

I have created a cloud flow that is triggered by a modification of a specific field of a dataverse record.

The flow creates a draft mail, containing details of the dataverse record that has been modified.

When I send the POST request with URI https://graph.microsoft.com/v1.0/me/messages,
the draft is created in my mailbox, even if the flow is triggered by another user.

The draft should be created in the mailbox of the user that triggers the flow.

However, when I send the request with URI https://graph.microsoft.com/v1.0/users/aaaaa-651186-uydyugdg/messages,

I get an error saying that aaaaa-651186-uydyugdg is not a valid user.

I obtain the hash from the trigger body.

This happens even if the user-code (or hash) is me.

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Michael E. Gernaey 53,968 Super User 2026 Season 2 on at

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Hi,

Just curious, why not use Send Email V2?

Anyway, the issue will be (even with V2 above) that its going to do it by default by the owner of the connection, aka you.

Problem is you essentially want to "send on behalf of a person" because even the Send Email V2 will let you set the From

property, it only works if you have permission (or whomever the connection belongs too) to see as those people.

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abm abm 32,998 Most Valuable Professional on at

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Hi

Could you post a screenshot of the draft email step of your flow?

Thanks

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MaartenVanhulst 6 on at

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Here's a screenshot of the step to create the draft mail, using a HTTP request.

It's a user requirement to generate a draft instead of send the mail directly, as a matter of keeping a human in the loop.

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