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MS Flow Generating an error "Unauthorized" on send an email action

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Hi ,

I am sending an email using ms flow, previously my flow was working fine but now flow is generating an error "Unauthorizes" on send an email action.

Here is output of send an email action : "{"statusCode":401,"headers":{"Date":"Wed, 08 Sep 2021 12:44:57 GMT","Content-Length":"249","Content-Type":"application/json"},"body":{"status":400,"source":""message":"Failed">unitedstates-002.consent.azure-apim.net:443/.../exchange to retrieve token for resource=https://outlook.office365.com. Message=An internal error occurred.\r\n"}}"

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RE: MS Flow Generating an error "Unauthorized" on send an email action

Hi Cynoteck,

You can refer following link, which may the question for the connection to outlook:

Solution: Please take a try to delete the connection to outlook and create a new connection to see if the issue still exists.

Solved: Send email action fails from 21 January - Getting ... - Power Platform Community (microsoft.com)

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