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AlanGP
Copper Contributor
Nov 01, 2019
Solved

Teams External Chat

All the sudden today, chat with external contacts stopped working, and the contact shows as "Unknown User". I haven't changed any settings. Anyone could share some insights here? I tried different ac...
  • AlanGP's avatar
    AlanGP
    Nov 01, 2019

    ChrisWebbTech Talked with Microsoft support, here is the incident details:

    Issue communicating to federated users
    TM194632, Microsoft Teams, Last updated: November 1, 2019 11:28 AM
    Start time: October 31, 2019 5:00 PM
    Status
    Service degradation
    User impact
    Users are unable to communicate to federated users through Microsoft Teams and may see a 403 error.
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    Latest message View history
    Title: Issue communicating to federated users User Impact: Users are unable to communicate to federated users through Microsoft Teams and may see a 403 error. Current status: We've identified that a certificate configuration problem is causing the issue. We've deployed a build to the affected environments to update the configuration of the certificate, which is expected to complete within the next hour. Scope of impact: This issue impacts users who have never initiated federated chats in Microsoft Teams. Start time: Thursday, October 31, 2019, 5:00 PM (10/1/2019, 12:00 AM UTC) Estimated time to resolve: We believe that the fix will be completely deployed within the next hour. Root cause: A certificate configuration problem is preventing users from communicating with federated users through Microsoft Teams. Next update by: Friday, November 1, 2019, 1:00 PM (8:00 PM UTC)

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