Slack vs Microsoft Teams - Uptime & Outage Comparison
Compare uptime, outage statistics, and incident history between Slack and Microsoft Teams. 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.
Slack
Status monitoring since April 2020
Operational
Slack Incident Statistics
1
Last 7 days
7
Last 30 days
24
Last 90 days
Recent Slack Incidents
Resolved
about 18 hours ago
Authorization Failure Errors Connecting to the Slack MCP Sever
We are aware that customers are receiving authorization failure errors when trying to connect to the Slack MCP server...
Resolved
15 days ago
Intermittent SSO login errors accessing Slack workspace.
Some users may experience trouble logging into Slack. We’re on the case and will provide another update once we have ...
Resolved
18 days ago
Issues with App Mentions, Grid Migrations, and Notifications
We're aware of an issue impacting the completion of ongoing enterprise migrations, resulting in longer than expected ...
Microsoft Teams
Status monitoring since September 2025
Operational
Microsoft Teams Incident Statistics
1
Last 7 days
1
Last 30 days
8
Last 90 days
Recent Microsoft Teams Incidents
Resolved
5 days 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
about 1 month 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...
Resolved
about 1 month ago
Users may not see other users’ presence status in Microsoft Teams Free
We've isolated a recently implemented change which is resulting in the presence status for users to be unviewable. We...
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