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Microsoft 365 のサービス正常性（TM677773）にて、一部のユーザーで Microsoft Teams モバイルアプリケーション上でチャネルの表示ができない SI（サービスインシデント）が発生していました。

“TM677773” のサマリー

問題

回避方法

Microsoft Teams デスクトップクライアントまたは、Microsoft Teams ブラウザー版にアクセスできるユーザーは、それらの方法でチャネルの表示が行える可能性があります。

現在

修正プログラムの展開を完了し、この問題が改善したことをリモートで確認しています。

原因

Microsoft Teams モバイルアプリケーションでユーザーにチャネルを視覚的に表示するために必要な一部のメタデータが、最近のアップデートにより変更されたことによる影響。

影響範囲

影響を受けるインフラストラクチャー上で Microsoft Teams モバイルアプリケーションを利用しようとするユーザー

・Title : Some users may not see channels in the Microsoft Teams mobile app
・User impact : Users may not have seen channels in the Microsoft Teams mobile app
・More info : Users who had access to the Microsoft Teams desktop or web apps may have been able to see the affected channels through those connection methods.
Impact was primarily limited to users on iOS devices.
・Final status : We’ve confirmed that the fix deployment is complete, and our telemetry indicates that this issue is resolved.
・Scope of impact : Users serviced by the affected infrastructure attempting to utilize the Microsoft Teams mobile app may have been impacted.
・Start time : Monday, September 25, 2023 at 3:59 AM GMT+9
・End time : Friday, September 29, 2023 at 4:00 PM GMT+9
・Root cause : Some metadata necessary for visibly presenting channels to users in the Microsoft Teams mobile app was altered by a recent update, resulting in impact.
・Next steps : – We’re reviewing our validation and update procedures to detect and prevent issues like this prior to deployment in the future.
This is the final update for the event.

・Title : Some users can’t see channels in the Microsoft Teams mobile app
・User impact : Users can’t see channels in the Microsoft Teams mobile app.
・More info : Users who have access to the Microsoft Teams desktop or web apps may be able to see the affected channels through those connection methods.
Impact appears primarily limited to users on iOS devices.
・Current status : We’re initiating the deployment of our fix, and are following our safe deployment practices to ensure no adverse impact occurs as the deployment proceeds.
We anticipate the deployment will complete by our next scheduled update, remediating impact for all affected users.
・Scope of impact : Users serviced by the affected infrastructure attempting to utilize the Microsoft Teams mobile app are impacted.
・Estimated time to resolve : We anticipate this issue will be fully resolved by Tuesday, October 3, 2023.
・Root cause : Some metadata necessary for visibly presenting channels to users in the Microsoft Teams mobile app was altered by a recent update, resulting in impact.
・Next update by : Wednesday, October 4, 2023 at 4:30 AM GMT+9

・Title : Some users can’t see channels in the Microsoft Teams mobile app
・User impact : Users can’t see channels in the Microsoft Teams mobile app.
・More info : Users who have access to the Microsoft Teams desktop or web apps may be able to see the affected channels through those connection methods.
Impact appears primarily limited to users on iOS devices.
・Current status : We’re continuing to develop a fix to address the underlying issue, and aim to confirm a timeline for its completion by our next scheduled communications update.
・Scope of impact : Users serviced by the affected infrastructure attempting to utilize the Microsoft Teams mobile app are impacted.
・Estimated time to resolve : We anticipate this issue will be fully resolved by Tuesday, October 3, 2023.
・Root cause : Some metadata necessary for visibly presenting channels to users in the Microsoft Teams mobile app was altered by a recent update, resulting in impact.
・Next update by : Saturday, September 30, 2023 at 6:00 AM GMT+9

・Title : Users can’t see channels in the Microsoft Teams mobile app
・User impact : Users can’t see channels in the Microsoft Teams mobile app.
・More info : Users who have access to the Microsoft Teams desktop or web apps may be able to see the affected channels through those connection methods.
・Current status : We’ve identified that a property necessary for visibly presenting channels to users in the Microsoft Teams mobile app was likely either removed or altered in a recent update, resulting in impact.
We’re developing a fix that we expect will resolve this issue.
Once development and testing have completed, we’ll provide an expected timeline to deploying this fix as one becomes available.
・Scope of impact : Users serviced by the affected infrastructure attempting to utilize the Microsoft Teams mobile app are impacted.
・Root cause : A property necessary for visibly presenting channels to users in the Microsoft Teams mobile app was likely either removed or altered in a recent update, resulting in impact.
・Next update by : Friday, September 29, 2023 at 9:00 AM GMT+9

・Title : Users can’t see channels in the Microsoft Teams mobile app
・User impact : Users can’t see channels in the Microsoft Teams mobile app.
・More info : Users who have access to the Microsoft Teams desktop or web apps may be able to see the affected channels through those connection methods.
・Current status : We’re reviewing recent service changes to determine if they’re preventing some users from seeing channels in the Microsoft Teams mobile app.
・Scope of impact : Your organization is affected by this event, and some users attempting to see channels in the Microsoft Teams mobile app are impacted.
・Next update by : Thursday, September 28, 2023 at 11:30 AM GMT+9

・Title : Users can’t see channels in the Microsoft Teams mobile app
・User impact : Users can’t see channels in the Microsoft Teams mobile app.
・Current status : We’re investigating a potential issue and checking for impact to your organization.
We’ll provide an update within 30 minutes.