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Microsoft Teams vs Slack - Uptime & Outage Comparison

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.

Microsoft Teams

Microsoft Teams

Status monitoring since September 2025

Operational

Microsoft Teams Incident Statistics

0
Last 7 days
0
Last 30 days
2
Last 90 days

Recent Microsoft Teams Incidents

Resolved about 2 months ago

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...

Resolved 3 months ago

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...

Resolved 4 months ago

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...

Slack

Slack

Status monitoring since April 2020

Operational

Slack Incident Statistics

4
Last 7 days
11
Last 30 days
25
Last 90 days

Recent Slack Incidents

Resolved 2 days ago

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...

Resolved 3 days ago

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 ...

Resolved 4 days ago

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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