Teams webhook suddenly stopped working

Jon Baker 30 Reputation points
2023-10-16T20:45:35.9966667+00:00

We have a CI/CD pipeline that sends messages to a Teams channel via the "Incoming Webhook" connector. Yesterday at 3:47PM Central was the last time that the webhook worked; today I'm getting a 200 response, but the body of the response shows that something is wrong... the gist of it is "XXX is unauthorized, the public key XXX is not found for ring WW, cannot validate signature."

I tried creating a new connector but am getting the same response. And, when I delete the new connector and submit the form to tell why, I get an HTTP error there too.

Is there an outage? Did something change that I need to address?

Microsoft Teams
Microsoft Teams
A Microsoft customizable chat-based workspace.
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Microsoft Teams Development
Microsoft Teams Development
Microsoft Teams: A Microsoft customizable chat-based workspace.Development: The process of researching, productizing, and refining new or existing technologies.
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Accepted answer
  1. Meghana-MSFT 3,891 Reputation points Microsoft Vendor
    2023-10-17T15:16:07.31+00:00

    There is an ongoing issue in Exchange Connectors. An incident has been raised related to this error - Web Hooks erroring randomly, unauthorized, the public key XXXXXXXXXXXXXXXXX = is not found for ring WW, cannot validate signature"}.


2 additional answers

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  1. Matt Rydzik 0 Reputation points
    2023-10-16T22:50:00.87+00:00

    Same thing here, retries sometimes work.

    0 comments No comments

  2. Thuan Le 0 Reputation points
    2023-10-18T08:40:09.3533333+00:00

    It works normally today. Maybe the problem is fixed. Hope it won't come back to haunt us.

    0 comments No comments

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