解決済み · 7時間継続

11月12日のClaudeの障害

Claudeの報告は1時間あたり1,049件まで急増し、7時間にわたって高い水準が続きました。

開始
18:00
2026年11月12日 · UTC
正常に復帰
1:00
7時間後
ピーク
1,049/時
通常の17×
Anthropicのインシデント
27時間57分
Elevated errors affecting the Microsoft 365 connector

障害中の報告数

16:002:50 UTC

Anthropicの発表内容

status.claude.com
解決済み2026/11/12 17:52~2026/11/13 21:49 · 27時間57分

Elevated errors affecting the Microsoft 365 connector

  1. 解決済み · 21:49

    This incident has been resolved. From 08:03 PT / 16:03 UTC on November 12 to 08:40 PT / 16:40 UTC on November 13, mail, calendar and search tools in the Microsoft 365 connector and Claude for Outlook returned errors for many requests because of a Microsoft 365 service incident. Microsoft is still completing its recovery, so you may see occasional errors or delays.

  2. 監視中 · 15:40

    We're seeing signs of recovery for the Microsoft 365 connector. Claude for Outlook is also recovering. Some SharePoint search requests are still returning errors. Microsoft's incident remains open, so errors may return. We're continuing to monitor and will update this post as soon as we have more info.

  3. 原因判明済み · 22:23

    This issue is caused by a Microsoft 365 service incident, and mail, calendar and search tools in the Microsoft 365 connector are still failing for most requests. Claude for Outlook remains affected. You can follow Microsoft's progress at https://status.cloud.microsoft. We will update this post when service is restored.

  4. 原因判明済み · 21:18

    We are continuing to work with our upstream provider, who is restarting affected servers. Mail, calendar and search tools in the Microsoft 365 connector are still failing for most requests, and Claude for Outlook remains affected. We will provide another update as soon as we have more information.

  5. 原因判明済み · 20:28

    We are continuing to work with our upstream provider on this issue. Mail, calendar and search tools in the Microsoft 365 connector are still failing for most requests. Claude for Outlook is also affected: mail and calendar actions may fail, and some users may not be able to open the add-in. We will provide another update within the hour.

  6. 原因判明済み · 18:34

    We have identified an issue with an upstream provider affecting the Microsoft 365 connector. Mail, calendar and search tools are failing for most requests, and new connections to the connector may not complete. We are in contact with them and will provide an update as soon as possible.

  7. 調査中 · 17:52

    We are investigating elevated errors and slow responses affecting the Microsoft 365 connector. Requests to mail, SharePoint, Teams chat and calendar through the connector may fail, and new connections to the connector may not complete. We will provide an update as soon as possible.

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