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Approval email to external approver outside organisation

Is it possible to send an approval email to an email address outside the organisation and have them approve or decline the request without having a user account within my organisation?


I have a travel request process but the security assessment team we use is external to the organisation. Their approval is the first of many in a linear process.



Community Support
Community Support

Hi MattBarker,


I assume that it should be possible to send an approval email to external approvers.

If you are using the “Office 365 Outlook – Send approval email”, you could enter static email addresses of the approvers in the To field, then they will be able to receive the Approval email once the flow is triggered.

Please try it on your side.

Best regards,
Mabel Mao

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

"Office 365 Outlook – send email with options" works for us.


Hello, @MattBarker!


Have you had a chance to apply @gstit‘s recommendation to adapt your Flow? If yes, and you find that solution to be satisfactory, please go ahead and click “Accept as Solution” so that this thread will be marked for other users to easily identify!



Thank you for being an active member of the Flow Community!



Flow Community Manager

- Gabriel
Community Manager
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