Outage in Slack
Authorization Failure Errors Connecting to the Slack MCP Sever
Resolved MinorIncident Report
Summary AI Generated
Customers experienced authorization failure errors when attempting to connect to the Slack MCP server, affecting third-party Slack integrations and the Apps/Integrations/APIs component. The incident lasted 1.1 hours while Slack investigated and resolved the connectivity issues.
We are aware that customers are receiving authorization failure errors when trying to connect to the Slack MCP server. We are currently investigating the issue and will provide an update as soon as more information becomes available. We're very sorry for any inconvience this may be causing your business.
Components affected
Slack Apps/Integrations/APIsTrusted by 1,000+ teams
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Latest Updates ( sorted recent to last )
25 days ago - at 03/23/2026 03:05AM
We continue to investigate the issue. At this time, it appears the impact is affecting users of certain third party Slack integrations. We’ll continue to provide updates as more information becomes available, and we apologize for any inconvenience this may be causing.
25 days ago - at 03/23/2026 02:40AM
We are aware that customers are receiving authorization failure errors when trying to connect to the Slack MCP server. We are currently investigating the issue and will provide an update as soon as more information becomes available. We're very sorry for any inconvience this may be causing your business.
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