# Segment: Major incident: (US West 2) Partial degradation of Linked Audiences, Linked Events, Reverse ETL, and Profile Sync due to external Snowflake Outage

**Summary:** Segment reported major degradation in US West 2 affecting Linked Audiences, Linked Events, Reverse ETL, and Profile Sync; syncs and data processing could fail due to an upstream Snowflake outage. It started at 2026-06-22 22:14 UTC and resolved at 2026-06-23 00:22 UTC, lasting 2 h 7 min. Functionality recovered after Snowflake’s outage resolved; no customer action was required. _(machine-written, sol)_
- Kind: Major incident · Label: degradation (model (Jev))
- Changed: 2026-06-22 22:14 UTC · Detected: 2026-10-17 18:22 UTC
- [Source: https://stspg.io/j3t6yt9twl9g](https://stspg.io/j3t6yt9twl9g)
- [Company: Segment](https://rewindex.com/company/segment.md)
- Versions: before (none: first archived) → after incident\_version:162/9cjs2d8x5n7q@4440cd64ca55
- Change 1 of 1 for this incident

## What changed

**1. Added: Title**

```diff
+ (US West 2) Partial degradation of Linked Audiences, Linked Events, Reverse ETL, and Profile Sync due to external Snowflake Outage
```

**2. Added: Impact**

```diff
+ major
```

**3. Added: Status**

```diff
+ resolved
```

**4. Added: Start time**

```diff
+ 2026-06-22 22:14 UTC
```

**5. Added: Resolved time**

```diff
+ 2026-06-23 00:22 UTC
```

**6. Added: Affected components**

```diff
+ Linked Audiences - Linked Audiences (US), Linked Audiences (US), Linked Events - Linked Events (US), Linked Events (US), Reverse ETL - Reverse ETL (US), Reverse ETL (US), Warehouse Destinations (US), Warehouses - Warehouse Destinations (US)
```

**7. Added: Update** (identified) · 2026-06-22 22:14 UTC

```diff
+ An ongoing upstream outage with Snowflake is causing degraded performance for Segment products that rely on customer data warehouses. - Impacted Products: Linked Audiences, Linked Events, Reverse ETL, and Profile Sync. - Current Status: Syncs and data processing may be failing. - Action Required: None. Data workflows will resume automatically once Snowflake capabilities are restored. - More Info: Monitor real-time infrastructure updates directly on the Snowflake Status Page: https://status.snowflake.com/
```

**8. Added: Update** (resolved) · 2026-06-23 00:22 UTC

```diff
+ Snowflake outage has resolved and consequently impacted functionalities across segment have recovered as well.
```

## History of this incident

| When (UTC) | Change | Label |
| --- | --- | --- |
| 2026-06-22 22:14 UTC | Major incident: (US West 2) Partial degradation of Linked Audiences, Linked Events, Reverse ETL, and Profile Sync due to external Snowflake Outage (this change) | degradation |

All Segment changes: [timeline](https://rewindex.com/company/segment/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._


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Canonical: https://rewindex.com/change/i2c36871d03c6cf · Markdown: https://rewindex.com/change/i2c36871d03c6cf.md · JSON: https://rewindex.com/api/v1/changes/i2c36871d03c6cf · Generated 2026-10-18T01:30:31.136Z