# Snowflake: Incident updated: INC20000301

**Summary:** _summary pending_
- Kind: Incident update · Label: not classified yet
- Changed: 2026-10-21 22:23 UTC · Detected: 2026-10-21 22:23 UTC
- [Source: https://stspg.io/1p8djd2f3bkb](https://stspg.io/1p8djd2f3bkb)
- [Company: Snowflake](https://rewindex.com/company/snowflake.md)
- Versions: before incident\_version:164/bfh045zclk5k@946f4617894b → after incident\_version:164/bfh045zclk5k@c8cabcb5011d
- Change 8 of 9 for this incident

Incident page (full timeline): [INC20000301](https://rewindex.com/company/snowflake/incidents/bfh045zclk5k.md)
## What changed

**1. Changed: Status**

```diff
- identified
+ monitoring
```

**2. Added: Update** (monitoring) · 2026-10-21 22:22 UTC

```diff
+ Current status: Our monitoring indicates that the previously affected services have returned to normal operation. We'll continue to monitor the environment until we're confident all services are functioning properly. Customer experience: Customers hosted in the specified region may have been unable to access or use multiple Snowflake services and features. Affected users may have been unable to sign in, use Snowsight, execute queries, resume virtual warehouses, or ingest files using Snowpipe or Snowpipe Streaming. Scheduled tasks and other automated workloads may also have failed to run or may not start as expected. Impact start time: 18:00 UTC October 21, 2026 Impact end time: 21:25 UTC October 21, 2026 Preliminary root cause: A configuration change applied to the cloud services layer in the specified region interacted with existing settings in a way that caused a significant number of instances to be taken out of service. This led to cascading failures across sign-in, query execution, data ingestion, and other dependent services.
```

## History of this incident

| When (UTC) | Change | Label |
| --- | --- | --- |
| 2026-10-21 18:26 UTC | [Critical incident: INC20000301](https://rewindex.com/change/i12715b2e6426ad.md) | critical |
| 2026-10-21 19:03 UTC | [Incident updated: INC20000301](https://rewindex.com/change/rc87e0f374f73d5.md) |  |
| 2026-10-21 19:43 UTC | [Incident updated: INC20000301](https://rewindex.com/change/r89de14fac2f77f.md) |  |
| 2026-10-21 20:13 UTC | [Incident updated: INC20000301](https://rewindex.com/change/rffc779cf2bfbbb.md) |  |
| 2026-10-21 20:43 UTC | [Incident updated: INC20000301](https://rewindex.com/change/r6b4d21aad69d20.md) |  |
| 2026-10-21 21:13 UTC | [Incident updated: INC20000301](https://rewindex.com/change/r7e9eeb00411c64.md) |  |
| 2026-10-21 21:43 UTC | [Incident updated: INC20000301](https://rewindex.com/change/r5514c726ffce6d.md) |  |
| 2026-10-21 22:23 UTC | Incident updated: INC20000301 (this change) |  |
| 2026-10-21 23:33 UTC | [Incident updated: INC20000301](https://rewindex.com/change/rf74465e2e1f16e.md) |  |

Previous: [change](https://rewindex.com/change/r5514c726ffce6d.md) · Next: [change](https://rewindex.com/change/rf74465e2e1f16e.md) · All Snowflake changes: [timeline](https://rewindex.com/company/snowflake/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/r300f0aef91109d · Markdown: https://rewindex.com/change/r300f0aef91109d.md · JSON: https://rewindex.com/api/v1/changes/r300f0aef91109d · Generated 2026-10-22T01:29:31.707Z