Flow Suddenly Failing - "Forbidden"

[JillH]

Hi all. I have a complex flow created by a former IT associate; it sends an email when a project's status changes to "Assigned." It's been working for years. As of Monday, I'm receiving a 403 error:

I am not in IT so - I'm a bit at a loss. The flow itself had not changed. What may have changed is the "from" email. It was coming from one email (let's say oldemail@company.com) to newemail@company.com. From what I can tell in Outlook, oldmail might be forwarding to new email?  Or, they deleted the old one and now it's the new one? I don't know. That swap happened, and it worked on Friday and through Monday, then stopped. 

Anyways - any ideas would be appreciated. (PS - I tried putting a ; after the From email - no luck...

[domdom]

Hi @JillH ,

I would suggest you to navigate to Microsoft Office 365 admin center (Link shown as below), and make sure the "newemail@compamy.com" account have all the necessary licenses, e.g. Microsoft Power Automate Free/ Office 365 Business Essentials/ Office 365 Business Premium.

If might take 3-5 mins for the Sync purpose based on my experience. If still no luck,  just to make sure oldemail@company.com account and newemail@company.com account have the exactly same settings.

Microsoft Office 365 Admin Center: https://admin.microsoft.com/ (you might need to login as admin)

Cheers,

Dom

[JillH]

Thank you! Here... is what the SysAdmin told me (since I don't have admin rights) :

"If it is sending Address only it does not need that and shared mailboxes do not get licensed."

[domdom]

Hi @JillH ,

'Send Email' function in Microsoft Flow use 'Outlook', for my understanding no matter if it is a shared Mailbox or a personal mail box, that account need to have a license. Would you mind to just let your sys admin give that account a license and try it out?

Shared Mailboxes can be also found under Active Users as well.

Cheers,

Dom 

[Jcook]

Hello,
Can you try clicking on the outlook action and seeing what connection is being used.

Try adding a new connection.
This can be done by clicking on the outlook action, you should see a email address on the bottom right on the action (this is what the connection is set to)
Click on the email address and click add new

—Josh
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[Marifu]

I've received the same "forbidden" error. For me, the adress from which the emails should be sent, didn't exist anymore. What worked for me was: In the "Send an email" action open "advanced options" and changing the "Sent form" field with another email adress (where i had the rights to send emails from). 

Good luck!