# Sumo Logic: Major incident: Problem with Cloud SIEM APIs and Cloud SIEM UI in Europe 1 (EU), Canada (CA)

**Summary:** Sumo Logic reported a major Cloud SIEM APIs and Cloud SIEM UI outage in Europe 1 (EU) and Canada (CA), starting 2026-09-18 21:57 UTC and lasting 9 min. UI loading failures or errors could disrupt viewing Insights, managing detection rules, and investigating signals and records. A fix was implemented; normal operation was restored at 2026-09-18 22:07 UTC. _(machine-written, sol)_
- Kind: Major incident · Label: outage (model (Jev))
- Changed: 2026-09-18 21:57 UTC · Detected: 2026-10-17 18:22 UTC
- [Source: https://stspg.io/yd8z0y0qvldz](https://stspg.io/yd8z0y0qvldz)
- [Company: Sumo Logic](https://rewindex.com/company/sumo-logic.md)
- Versions: before (none: first archived) → after incident\_version:292/lwl2w614n764@8cfe751c3ba0
- Change 1 of 1 for this incident

Incident page (full timeline): [Problem with Cloud SIEM APIs and Cloud SIEM UI in Europe 1 (EU), Canada (CA)](https://rewindex.com/company/sumo-logic/incidents/lwl2w614n764.md)
## What changed

**1. Added: Title**

```diff
+ Problem with Cloud SIEM APIs and Cloud SIEM UI in Europe 1 (EU), Canada (CA)
```

**2. Added: Impact**

```diff
+ major
```

**3. Added: Status**

```diff
+ resolved
```

**4. Added: Start time**

```diff
+ 2026-09-18 21:57 UTC
```

**5. Added: Resolved time**

```diff
+ 2026-09-18 22:07 UTC
```

**6. Added: Affected components**

```diff
+ Canada (CA) - Cloud SIEM APIs, Canada (CA) - Cloud SIEM UI, Cloud SIEM APIs, Cloud SIEM UI, Europe 1 (EU) - Cloud SIEM APIs, Europe 1 (EU) - Cloud SIEM UI
```

**7. Added: Update** (identified) · 2026-09-18 21:57 UTC

```diff
+ We have identified the source of the issue affecting Cloud SIEM APIs and Cloud SIEM UI. The Cloud SIEM User Interface may fail to load or show errors. This can impact viewing Insights, managing detection rules, or investigating related signals and records.  We are working on a fix for the problem.
```

**8. Added: Update** (monitoring) · 2026-09-18 21:59 UTC

```diff
+ We have implemented a fix for the issue affecting Cloud SIEM APIs and Cloud SIEM UI. The Cloud SIEM User Interface may fail to load or show errors. This can impact viewing Insights, managing detection rules, or investigating related signals and records.  We are currently monitoring the results.
```

**9. Added: Update** (resolved) · 2026-09-18 22:07 UTC

```diff
+ We are no longer seeing issues with Cloud SIEM APIs and Cloud SIEM UI and normal operation has been restored at this time.
```

## History of this incident

| When (UTC) | Change | Label |
| --- | --- | --- |
| 2026-09-18 21:57 UTC | Major incident: Problem with Cloud SIEM APIs and Cloud SIEM UI in Europe 1 (EU), Canada (CA) (this change) | outage |

All Sumo Logic changes: [timeline](https://rewindex.com/company/sumo-logic/changes.md)
_Diff excerpts are shown on normalized text: dates, counters and tokens appear as ‹date›, ‹count›, ‹tok›; noise-only edits are hidden. Rewindex shows the changed passages, not a copy of the page._


---
Canonical: https://rewindex.com/change/i97e01b328de9e6 · Markdown: https://rewindex.com/change/i97e01b328de9e6.md · JSON: https://rewindex.com/api/v1/changes/i97e01b328de9e6 · Generated 2026-10-19T01:56:04.922Z