Microsoft 365 のサービス正常性（MO477872）にて、日本を含むアジア太平洋地域のユーザーで Microsoft 365 サービス の各種アプリケーション内でさまざまな機能が利用できない SI（サービス インシデント）が発生していました。

“MO449914” のサマリー

目次

Users in the Asia-Pacific region couldn’t use various features within various Microsoft 365 apps – MO477872

サービス：Exchange Online、Microsoft 365 suite、Microsoft Teams

状態：Service restored

ユーザーへの影響：Users may be experiencing issues with multiple Microsoft 365 services that leverage Exchange Online

Microsoft 365 のサービス正常性（MO477872）にて、日本を含むアジア太平洋地域のユーザーで Microsoft 365 サービス の各種アプリケーション内でさまざまな機能が利用できない SI（サービス インシデント）が発生していました。

本事象の影響を受けている場合、Exchange Online、Microsoft Teams および SharePoint Online、Microsoft PowerApps、Microsoft PowerAutomate などのさまざまなサービスに影響がおよんでいる可能性があります。

現在は、テスト環境において、レガシー プロセスからの移行と影響を受けるインフラストラクチャーの再起動を実施し、本事象の影響の軽減に成功しました。

このため、影響を受けるインフラストラクチャーに対して、これらの緩和措置を実施し、サービスのモニタリングの結果、影響が改善されたことを確認しています。

この問題は、トークン要求を処理するコンポーネントが最適なしきい値を超えたことにより、複数の Microsoft 365 サービス へ影響を及ぼしたことに起因します。

今後は、この問題の再発防止のため、影響を受けるシステムのパフォーマンス データと傾向を分析しています。

なお、PIR（Post – Incident Report）は、5 営業日以内に発行します。

この問題は、日本を含むアジア太平洋地域のすべてのユーザーに影響を与えた可能性があります。

Post Incident Repot（PIR）

Incident Information

User Impact

• Users in the Asia-Pacific region couldn’t use various features within various Microsoft 365 apps.
• ・More info : Impact included, but was not limited to, the following services : – Exchange Online
• – Microsoft Teams (Mitigated)
• – SharePoint Online
• – Microsoft PowerApps
• – Microsoft PowerAutomate
• For Exchange Online specifically : – Users may have been unable to access the service
• – Users may have been unable to send/receive mail/files
• – Users may have been unable to leverage general features
• For SharePoint Online specifically : – Users may have been unable to perform searches
• For Microsoft Teams specifically (no longer impacting) : – Users may have experienced issues scheduling/editing meetings and/or live meetings
• For Microsoft Teams specifically (no longer impacting) : – Users may have experienced issues scheduling/editing meetings and/or live meetings
• – Users may have been unable to search Microsoft Teams
• – Users may have been unable to load the Assignments tab in Microsoft Teams
• – Users may have been unable to use the Template Management or People Picker features of the Microsoft Teams Approvals app
• – Users may have been unable to load their contacts including favorites and user created contact groups
• – Users may have been unable to set or see actual presence
• For Microsoft Teams specifically (no longer impacting) : – Users may have experienced issues scheduling/editing meetings and/or live meetings
• – Users may have been unable to search Microsoft Teams
• – Users may have been unable to load the Assignments tab in Microsoft Teams
• – Users may have been unable to use the Template Management or People Picker features of the Microsoft Teams Approvals app
• – Users may have been unable to load their contacts including favorites and user created contact groups
• – Users may have been unable to set or see actual presence
• – Users may have been unable to to initiate new chat
• – Users may have been unable to see the deleted channels under a team
• – Users may have been unable to see team profile pictures
• – Users may have been unable to see sensitivity label information
• For Microsoft Power Apps and Power Automate specifically : – Users may have been unable to use these Office 365 connectors in Microsoft Power Automate and seen flow runtime errors: Office 365 Outlook, Outlook.com, Excel Online (Business), and/or Office 365 Users
• – Users may have been unable to use Office 365 connectors in Microsoft Power Apps: Office 365 Groups, Office 365 Outlook, and/or Office 365 Users

Scope of Impact

Based on our investigation and reports, this issue may have impacted any user within the Asia-Pacific region (APAC).

Incident Start Date and Time

Thursday, December 1, 2022, at 11:55 PM UTC

Incident End Date and Time

Friday, December 2, 2022, at 9:54 AM UTC

Root Cause

• Processing components were not performing within optimal performance thresholds because of a legacy process that required tokens to be processed on specific components.
• In isolation this process wasn’t problematic, but combined with the large number of requests, this resulted in resource saturation, causing impact across multiple Microsoft 365 apps

Actions Taken (All times UTC)

Thursday, December 1

• ・11:41 PM – We received alerts that Exchange Online components had dropped below standard operational thresholds, causing impact for end users.
• We started a high-priority investigation to understand what had happened and establish a fix.

Friday, December 2

• ・6:00 AM – After extended monitoring through peak traffic we confirmed that the issue is fully mitigated.
• We begin returning the remaining infrastructure back into active service. We also continue our investigation into the underlying cause of the issue.
• ・12:30 AM – We correlated reports from support that impact may not be limited to Exchange Online, but also Microsoft Teams and Microsoft Power Apps. We continued analyzing diagnostic logs.
• ・12:52 AM – We restarted a section of affected infrastructure to see if this would provide relief.
• ・1:26 AM – We suspected that a token-issuing service may have reached an operational threshold, causing impact for users hosted in APAC.
• We started analyzing the token issuer service, which was restarted as part of our actions at 12:52 AM. Additionally, after the restarts, we saw improvement with the service.
• ・1:31 AM – We noticed that recovery had stalled and started to explore further recovery options.
• ・3:14 AM – We restarted services on more affected infrastructure, specifically Client Access Front-end (CAFÉ) infrastructure, to make sure that all services come back online in a healthy state.
• ・3:43 AM – We saw service health improving at this time, for all impacted services.
• ・5:27 AM – Microsoft Teams reported that their services had recovered.
• ・5:57 AM – Recovery for Exchange Online was progressing slowly.
• ・6:00 AM – We narrowed down the cause to two specific services. We started analyzing logs from thos services to understand why the impact scenario cascaded so broadly.
• ・7:02 AM – For the root cause investigation, we discovered that a specific app caused a spike in token requests at approximately 12:00 AM.
• This spike happened for an app which requires CAFÉ arrays to authenticate, and the increase (of approximately 40 times) may have put the database into contention.
• ・7:45 AM – After a period of analysis, we discovered that a legacy process requires tokens are processed on Domain Controllers, but because of the volume of requests, these DCs became degraded, resulting in impact.
• We developed an Encryption Control System (ECS) fix for the affected app, which would disable the legacy process. We tested this in a pre-production environment before applying it to the live production environment.
• ・8:27 AM – We started testing the ECS fix.
• ・9:14 AM – In parallel, we restarted any affected sections of infrastructure that were still showing signs of degradation.
• ・9:54 AM – The restarts were approximately 50% complete, and the ECS fix had completed deployment. We started a period of monitoring to make sure the service had fully recovered.
• ・10:13 AM – We confirmed that the service was healthy and declared the incident resolved.

Next Steps

December 2, 2022 7:55 PM – Service restored

• ・Title : Users in the Asia-Pacific region couldn’t use various features within various Microsoft 365 apps
• ・User Impact : Users in the Asia-Pacific region couldn’t use various features within various Microsoft 365 apps.
• ・More info : Impact included the but was not limited to the following services :
• – Exchange Online
• – Microsoft Teams (Mitigated)
• – SharePoint Online
• – Microsoft PowerApps
• – Microsoft PowerAutomate
• For Exchange Online specifically : – Users may have been unable to access the service
• – Users may have been to send/receive mail/files
• – Users may have been to leverage general features
• For SharePoint Online specifically : – Users may have been unable to perform searches
• For Microsoft Teams specifically (no longer impacting) : – Users may have experienced issues scheduling/editing meetings and/or live meetings
• – Users may have been to search Microsoft Teams
• – Users may have been to load the Assignments tab in Microsoft Teams
• – Users may have been to use the Template Management or People Picker features of the Microsoft Teams Approvals app
• – Users may not have been able to load their contacts including favorites and user created contact groups
• – Users may not have been able set or see actual presence
• – Users may not have been able to initiate new chat
• – Users may have been unable to see the deleted channels under a team
• – Users may have been unable to see team profile pictures
• – Users may have been unable to see sensitivity label information
• For Microsoft Power Apps and Power Automate specifically : – Users may have been unable to use these Office 365 connectors in Microsoft Power Automate and seen flow runtime errors : Office 365 Outlook, Outlook.com, Excel Online (Business), and/or Office 365 Users
• – Users may have been unable to use Office 365 connectors in Microsoft Power Apps : Office 365 Groups, Office 365 Outlook, and/or Office 365 Users
• ・Final status : Transitioning away from the legacy process and restarting affected infrastructure to mitigate impact within our test environment was successful.
• We implemented these mitigation actions across the affected infrastructure, monitored the service and confirmed that impact was remediated.
• ・Scope of impact : Based on our investigation and reports, this issue may have impacted any user within the Asia-Pacific region.
• ・Start time : Friday, December 2, 2022, 8:55 AM (12/1/2022, 11:55 PM UTC)
• ・End time : Friday, December 2, 2022, 6:54 PM (9:54 AM UTC)
• ・Preliminary root cause : Processing components were not performing within optimal performance thresholds because of a legacy process that required tokens to be processed on specific components.
• In isolation this process wasn’t problematic, but combined with the large number of requests, this resulted in resource saturation, causing impact across multiple Microsoft 365 apps
• ・Next steps : – We’re analyzing performance data and trends on affected systems to help prevent this problem from happening again.
• We’ll publish a post-incident report within five business days.

December 2, 2022 9:14 PM – Service restored

• ・Title : Users in the Asia-Pacific region can’t use various features within various Microsoft 365 apps
• ・User Impact : Users in the Asia-Pacific region can’t use various features within various Microsoft 365 apps.
• ・More info : Impact includes the following services but is not limited to :
• – Exchange Online
• – Microsoft Teams (Mitigated)
• – SharePoint Online
• – Microsoft PowerApps
• – Microsoft PowerAutomate
• For Exchange Online specifically : – Users may be unable to access the service
• – Users may be unable to send/receive mail/files
• – Users may be unable to leverage general features
• For SharePoint Online specifically : – Users may be unable to perform searches
• For Microsoft Teams specifically (no longer impacting) : – Users may experience issues scheduling/editing meetings and/or live meetings
• – Users may be unable to search Microsoft Teams
• – Users may be unable to load the Assignments tab in Microsoft Teams
• – Users may be unable to use the Template Management or People Picker features of the Microsoft Teams Approvals app
• – Users may not be able to load their contacts including favorites and user created contact groups
• – Users may not be able set or see actual presence
• – Users may not be able to initiate new chat
• – Users may be unable to see the deleted channels under a team
• – Users may be unable to see team profile pictures
• – Users may be unable to see sensitivity label information
• For Microsoft Power Apps and Power Automate specifically : – Users may be unable to use these Office 365 connectors in Microsoft Power Automate and see flow runtime errors : Office 365 Outlook, Outlook.com, Excel Online (Business), and/or Office 365 Users
• – Users may be unable to use Office 365 connectors in Microsoft Power Apps : Office 365 Groups, Office 365 Outlook, and/or Office 365 Users
• ・Current status : Further investigation has determined that processing components were operating outside of optimal performance thresholds because of a legacy process that requires tokens to be processed on specific components.
• In isolation this process wasn’t problematic, but combined with the large number of requests resulted in resource saturation.
• We’re transitioning away from the legacy process within our test environment and restarting affected infrastructure to mitigate impact.
• Once validation is complete in our test environment, these actions will be implemented across the affected infrastructure.
• ・Scope of impact : Based on our investigation and reports, this issue may impact any user within the Asia-Pacific region.
• ・Start time : Friday, December 2, 2022, 8:55 AM (12/1/2022, 11:55 PM UTC)
• ・Preliminary root cause : Components that process token requests are operating outside of optimal thresholds, resulting in impact across multiple Microsoft 365 apps.
• ・Next update by : Friday, December 2, 2022, 10:00 PM (1:00 PM UTC)

December 2, 2022 6:06 PM – Service restored

• ・Title : Users in the Asia-Pacific region can’t use various features within various Microsoft 365 apps
• ・User Impact : Users in the Asia-Pacific region can’t use various features within various Microsoft 365 apps.
• ・More info : Impact includes the following services but is not limited to :
• – Exchange Online
• – Microsoft Teams (Mitigated)
• – SharePoint Online
• – Microsoft PowerApps
• – Microsoft PowerAutomate
• For Exchange Online specifically : – Users may be unable to access the service
• – Users may be unable to send/receive mail/files
• – Users may be unable to leverage general features
• For SharePoint Online specifically : – Users may be unable to perform searches
• For Microsoft Teams specifically (no longer impacting) : – Users may experience issues scheduling/editing meetings and/or live meetings
• – Users may be unable to search Microsoft Teams
• – Users may be unable to load the Assignments tab in Microsoft Teams
• – Users may be unable to use the Template Management or People Picker features of the Microsoft Teams Approvals app
• – Users may not be able to load their contacts including favorites and user created contact groups
• – Users may not be able set or see actual presence
• – Users may not be able to initiate new chat
• – Users may be unable to see the deleted channels under a team
• – Users may be unable to see team profile pictures
• – Users may be unable to see sensitivity label information
• For Microsoft Power Apps and Power Automate specifically : – Users may be unable to use these Office 365 connectors in Microsoft Power Automate and see flow runtime errors: Office 365 Outlook, Outlook.com, Excel Online (Business), and/or Office 365 Users
• – Users may be unable to use Office 365 connectors in Microsoft Power Apps: Office 365 Groups, Office 365 Outlook, and/or Office 365 Users
• ・Current status : We’ve determined that a larger than expected increase in token requests resulted in components that process those requests operating outside of optimal thresholds.
• We’re investigating the cause of these large requests to isolate the issue and identify mitigation actions.
• The service remains stable and availability continues to increase.
• ・Scope of impact : Based on our investigation and reports, this issue may impact any user within the Asia-Pacific region.
• ・Start time : Friday, December 2, 2022, 8:55 AM (12/1/2022, 11:55 PM UTC)
• ・Preliminary root cause : Components that process token requests are operating outside of optimal thresholds, resulting in impact across multiple Microsoft 365 apps.
• ・Next update by : Friday, December 2, 2022, 8:00 PM (11:00 AM UTC)

December 2, 2022 4:10 PM – Service restored

• ・Title : Users in the Asia-Pacific region can’t use various features within various Microsoft 365 apps
• ・User Impact : Users in the Asia-Pacific region can’t use various features within various Microsoft 365 apps.
• ・More info : Impact includes the following services but is not limited to :
• – Exchange Online
• – Microsoft Teams (Mitigated)
• – SharePoint Online
• – Microsoft PowerApps
• – Microsoft PowerAutomate
• For Exchange Online specifically : – Users may be unable to access the service
• – Users may be unable to send/receive mail/files
• – Users may be unable to leverage general features
• For SharePoint Online specifically : – Users may be unable to perform searches
• For Microsoft Teams specifically (no longer impacting) : – Users may experience issues scheduling/editing meetings and/or live meetings
• – Users may be unable to search Microsoft Teams
• – Users may be unable to load the Assignments tab in Microsoft Teams
• – Users may be unable to use the Template Management or People Picker features of the Microsoft Teams Approvals app
• – Users may not be able to load their contacts including favorites and user created contact groups
• – Users may not be able set or see actual presence
• – Users may not be able to initiate new chat
• – Users may be unable to see the deleted channels under a team
• – Users may be unable to see team profile pictures
• – Users may be unable to see sensitivity label information
• For Microsoft Power Apps and Power Automate specifically : – Users may be unable to use these Office 365 connectors in Microsoft Power Automate and see flow runtime errors: Office 365 Outlook, Outlook.com, Excel Online (Business), and/or Office 365 Users
• – Users may be unable to use Office 365 connectors in Microsoft Power Apps: Office 365 Groups, Office 365 Outlook, and/or Office 365 Users
• ・Current status : We continue to notice an uptrend of health return to the service while our root cause investigation progresses.
• We working to narrow down the underlying cause and ensure the service remains in a stable state.
• Additionally, Microsoft Teams impact has been mitigated.
• ・Scope of impact : Based on our investigation and reports, this issue may impact any user within the Asia-Pacific region.
• ・Start time : Friday, December 2, 2022, 8:55 AM (12/1/2022, 11:55 PM UTC)
• ・Preliminary root cause : A system related issue inadvertently caused our service infrastructure to get into a suboptimal state, resulting in impact across multiple Microsoft 365 apps.
• ・Next update by : Friday, December 2, 2022, 6:00 PM (9:00 AM UTC)

December 2, 2022 2:56 PM · クイック更新 – Service restored

• At this time, we have mitigated a majority of the scenarios for Microsoft Teams besides residual impact to the presence feature.
• We are continuing to address impact to all of the affected Microsoft 365 services.
• This quick update is designed to give the latest information on this issue.

December 2, 2022 2:16 PM – Service restored

• ・Title : Users in the Asia-Pacific region can’t use various features within various Microsoft 365 apps
• ・User Impact : Users in the Asia-Pacific region can’t use various features within various Microsoft 365 apps.
• ・More info : Impact includes the following services but is not limited to :
• – Exchange Online
• – Microsoft Teams (Mitigated)
• – SharePoint Online
• – Microsoft PowerApps
• – Microsoft PowerAutomate
• Microsoft Teams messaging, chat, channels, and other core services do not appear to be affected at this time.
• For Exchange Online specifically : – Users may be unable to access the service
• – Users may be unable to send/receive mail/files
• – Users may be unable to leverage general features
• For Microsoft Teams specifically : – Users may experience issues scheduling/editing meetings and/or live meetings
• – Users may be unable to search Microsoft Teams
• – Users may be unable to load the Assignments tab in Microsoft Teams
• – Users may be unable to use the Template Management or People Picker features of the Microsoft Teams Approvals app
• – Users may not be able to load their contacts including favorites and user created contact groups
• – Users may not be able set or see actual presence
• – Users may not be able to initiate new chat
• – Users may be unable to see the deleted channels under a team
• – Users may be unable to see team profile pictures
• – Users may be unable to see sensitivity label information
• For SharePoint Online specifically : – Users may be unable to perform searches
• For Microsoft Power Apps and Power Automate specifically : – Users may be unable to use these Office 365 connectors in Microsoft Power Automate and see flow runtime errors: Office 365 Outlook, Outlook.com, Excel Online (Business), and/or Office 365 Users.
• – Users may be unable to use Office 365 connectors in Microsoft Power Apps: Office 365 Groups, Office 365 Outlook, and/or Office 365 Users.
• ・Current status : We have restarted additional service infrastructure services and have observed further improvements to the service.
• We still remain focused on isolating the cause of the problem.
• Our initial hypothesis indicates a system service was behaving in an unexpected manner which appears to have caused our service to get into a suboptimal state.
• ・Scope of impact : Based on our investigation and reports, this issue may impact any user within the Asia-Pacific region.
• ・Start time : Friday, December 2, 2022, 8:55 AM (12/1/2022, 11:55 PM UTC)
• ・Preliminary root cause : A system related issue inadvertently caused our service infrastructure to get into a suboptimal state, resulting in impact across multiple Microsoft 365 apps.
• ・Next update by : Friday, December 2, 2022, 4:30 PM (7:30 AM UTC)

December 2, 2022 1:14 PM – Service restored

• ・Title : Users in the Asia-Pacific region can’t use various features within various Microsoft 365 apps
• ・User Impact : Users in the Asia-Pacific region can’t use various features within various Microsoft 365 apps.
• ・More info : Impact includes the following services but is not limited to :
• – Exchange Online
• – Microsoft Teams (Mitigated)
• – SharePoint Online
• – Microsoft PowerApps
• – Microsoft PowerAutomate
• Microsoft Teams messaging, chat, channels, and other core services do not appear to be affected at this time.
• For Exchange Online specifically : – Users may be unable to access the service
• – Users may be unable to send/receive mail/files
• – Users may be unable to leverage general features
• For Microsoft Teams specifically : – Users may experience issues scheduling/editing meetings and/or live meetings
• – Users may be unable to search Microsoft Teams
• – Users may be unable to load the Assignments tab in Microsoft Teams
• – Users may be unable to use the Template Management or People Picker features of the Microsoft Teams Approvals app
• – Users may not be able to load their contacts including favorites and user created contact groups
• – Users may not be able set or see actual presence
• – Users may not be able to initiate new chat
• – Users may be unable to see the deleted channels under a team
• – Users may be unable to see team profile pictures
• – Users may be unable to see sensitivity label information
• For SharePoint Online specifically : – Users may be unable to perform searches
• For Microsoft Power Apps and Power Automate specifically : – Users may be unable to use these Office 365 connectors in Microsoft Power Automate and see flow runtime errors: Office 365 Outlook, Outlook.com, Excel Online (Business), and/or Office 365 Users.
• – Users may be unable to use Office 365 connectors in Microsoft Power Apps: Office 365 Groups, Office 365 Outlook, and/or Office 365 Users.
• ・Current status : Our service availability remains at a stable level and we are still focused on understanding the underlying source of the issue and ensuring the problem does not reoccur.
• ・Scope of impact : Based on our investigation and reports, this issue may impact any user within the Asia-Pacific region.
• ・Next update by : Friday, December 2, 2022, 3:30 PM (6:30 AM UTC)

December 2, 2022 12:47 PM · クイック更新 – Service restored

• ・Current status : We have observed that the service remains at a relatively healthy state; however, it has not reached our acceptable thresholds.
• We are continuing to work on understanding the source of the problem, why the recovery is stagnant, and how to prevent this from reoccurring.
• This quick update is designed to give the latest information on this issue.

December 2, 2022 11:56 AM – Service restored

• ・Title : Users in the Asia-Pacific region can’t use various features within various Microsoft 365 apps
• ・User Impact : Users in the Asia-Pacific region can’t use various features within various Microsoft 365 apps.
• ・More info : Impact includes the following services but is not limited to :
• – Exchange Online
• – Microsoft Teams (Mitigated)
• – SharePoint Online
• – Microsoft PowerApps
• – Microsoft PowerAutomate
• Microsoft Teams messaging, chat, channels, and other core services do not appear to be affected at this time.
• For Exchange Online specifically : – Users may be unable to access the service
• – Users may be unable to send/receive mail/files
• – Users may be unable to leverage general features
• For Microsoft Teams specifically : – Users may experience issues scheduling/editing meetings and/or live meetings
• – Users may be unable to search Microsoft Teams
• – Users may be unable to load the Assignments tab in Microsoft Teams
• – Users may be unable to use the Template Management or People Picker features of the Microsoft Teams Approvals app
• – Users may not be able to load their contacts including favorites and user created contact groups
• – Users may not be able set or see actual presence
• – Users may not be able to initiate new chat
• – Users may be unable to see the deleted channels under a team
• – Users may be unable to see team profile pictures
• – Users may be unable to see sensitivity label information
• For SharePoint Online specifically : – Users may be unable to perform searches
• For Microsoft Power Apps and Power Automate specifically : – Users may be unable to use these Office 365 connectors in Microsoft Power Automate and see flow runtime errors: Office 365 Outlook, Outlook.com, Excel Online (Business), and/or Office 365 Users.
• – Users may be unable to use these Office 365 connectors in Microsoft Power Apps: Office 365 Groups, Office 365 Outlook, and/or Office 365 Users.
• ・Current status : We are continuing to notice a significant improvement in service health due that appears to be attributed to the restart of the impacted service infrastructure.
• We are continuing to monitor the service to ensure it continues to trend towards a healthy state.
• In parallel, we are working on understanding the root cause and exploring other mitigation options if needed.
• ・Scope of impact : Based on our investigation and reports, this issue may impact any user within the Asia-Pacific region.
• ・Next update by : Friday, December 2, 2022, 1:30 PM (4:30 AM UTC)

December 2, 2022 10:58 AM · クイック更新 – Service restored

• While we continuing to analyze any relevant diagnostic data, we are restarting a subset of the affected infrastructure to determine if that will provide relief to the service.
• This quick update is designed to give the latest information on this issue.

December 2, 2022 10:41 AM – Service restored

• ・Title : Users in the Asia-Pacific region can’t use various features within Exchange Online and Microsoft Teams
• ・User Impact : Users in the Asia-Pacific region can’t use various features within Exchange Online and Microsoft Teams.
• ・More info : Microsoft Teams messaging, chat, channels, and other core services do not appear to be affected at this time.
• Based on our understanding of the issue, users may be unable to use any feature within Exchange Online or Microsoft Teams.
• ・The Exchange Online features may include : – Users may be unable to access the service
• – Users may be unable to send/receive mail/files
• – Users may be unable to leverage general features
• ・For Microsoft Teams specifically : – Users may experience issues scheduling/editing meetings and/or live meetings
• – Users may be unable to search Microsoft Teams
• – Users may be unable to load the Assignments tab in Microsoft Teams.
• ・Current status : Our initial investigation indicates that there our service infrastructure is performing at a sub-optimal level, resulting in impact to general service functionality.
• We are continuing to review all system logs to understand the cause of the issue and develop a mitigation plan.
• ・Scope of impact : Based on our investigation and reports, this issue may impact any user within the Asia-Pacific region.
• ・Next update by : Friday, December 2, 2022, 11:30 AM (2:30 AM UTC)

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関連リンク

• ・Microsoft Exchange | 企業に役立つ安全なビジネス メール サービス：https://www.microsoft.com/ja-jp/microsoft-365/exchange/email
• ・Microsoft Teams｜リモート ワークのためのコラボレーション ツール：https://www.microsoft.com/ja-jp/microsoft-365/microsoft-teams/group-chat-software
• ・Microsoft SharePoint｜イントラネットとコラボレーション ソリューション：https://www.microsoft.com/ja-jp/microsoft-365/sharepoint/collaboration
• ・Microsoft 365 – サブスクリプションで Office アプリを使用｜Microsoft 365：
• ・日本マイクロソフト – Official Home Page：https://www.microsoft.com/ja-jp

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