Compare uptime, outage statistics, and incident history between Microsoft Teams and Slack. See which service has better reliability.
Note: Each service has different practices when updating its status page. One service may report more incidents due to transparency, not necessarily worse reliability. Compare these stats with context.
Status monitoring since September 2025
Some users are unable to search, chat or call users in Microsoft Teams Free
We're monitoring our fix deployment to ensure it has saturated throughout the entire affected environment before vali...
Users may intermittently be unable to join meetings or access Microsoft Teams...
We're continuing to develop our fix aimed at addressing the regression introduced by the offending Windows update aft...
Some users may experience issues signing into Microsoft Teams Free on mobile ...
We've identified a recent deployment that's causing some users to experience issues signing into Teams Free on mobile...
Status monitoring since April 2020
Child windows displaying content at half height
We're aware of an issue affecting the Slack desktop app. Users may find that content in child windows, such as channe...
Trouble with Gmail add-on Integration
We're aware of an issue impacting the Slack Gmail add-on integration. As a result, users are unable to interact with ...
Trouble adding multiple users to channels
Some users may experience issues when attempting to add multiple users to channels. Multiple matches error may appear...
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