Slack outage on November 17, 2025
Slack users likely saw failed connections, degraded availability, or session instability for this Productivity service. The incident reached Minor severity and lasted 45 min. The stored report window does not show a preserved user-report spike.
Between 1:00 AM and 8:00 AM PST on November 12, 2025, some users experienced delays when attempting to use AI features, including message summaries and search.An upstream provider experienced latency with their services, resulting in backend errors for some Slack AI functions. To mitigate the issue, we temporarily routed traffic to a separate version. After the upstream provider resolved their issue, affected Slack AI functionality was successfully restored.
Deterministic readout · awaiting AI summary pass
Incident detected
Minor confidence crossed the incident threshold for Incident: Slowness in AI Search Answers and AI Explain.
Marked resolved
The incident was closed after 45 min of observed impact.
No per-source signal payloads were preserved in this incident's snapshot window.
Confidence scoring
25.00The incident reached 25.00 peak confidence across available stored status snapshots.
User reports
0 / 15mNo elevated user-report volume was preserved in the incident window snapshots.
Status samples
0 affectedThe incident row exists, but the bounded snapshot window does not include affected status samples.
Recovery signal
ResolvedRecovery was recorded at Mon, Nov 17, 2025, 07:42 PM UTC.