# Census: Major incident: LinkedIn Sync Failures - server responding with status 426

**Summary:** Census reported a major incident affecting some customers: LinkedIn syncs failed with status 426, and new and existing LinkedIn Destination tests could fail. It started at 2026-09-16 11:42 UTC and was resolved at 2026-09-16 15:33 UTC, lasting 3 h 50 min. Impacted syncs should recover on their next scheduled or manual run; destination connections and tests should work again. _(machine-written, sol)_
- Kind: Major incident · Label: outage (model (Jev))
- Changed: 2026-09-16 11:42 UTC · Detected: 2026-10-17 18:22 UTC
- [Source: https://stspg.io/p4vtnhh36vjl](https://stspg.io/p4vtnhh36vjl)
- [Company: Census](https://rewindex.com/company/census.md)
- Versions: before (none: first archived) → after incident\_version:136/gjd61j31yhb2@2401f9b0c0ec
- Change 1 of 1 for this incident

## What changed

**1. Added: Title**

```diff
+ LinkedIn Sync Failures - server responding with status 426
```

**2. Added: Impact**

```diff
+ major
```

**3. Added: Status**

```diff
+ resolved
```

**4. Added: Start time**

```diff
+ 2026-09-16 11:42 UTC
```

**5. Added: Resolved time**

```diff
+ 2026-09-16 15:33 UTC
```

**6. Added: Affected components**

```diff
+ Census Sync Management UI
```

**7. Added: Update** (identified) · 2026-09-16 11:42 UTC

```diff
+ Some customers are encountering an issue on LinkedIn syncs causing them to fail with the error message "server responded with status 426". Customers may also see new and existing LinkedIn Destination tests fail when testing them. The issue has been identified and the engineering team is working on a fix.
```

**8. Added: Update** (resolved) · 2026-09-16 15:33 UTC

```diff
+ This incident has now been resolved. You should see impacted syncs recover on the next scheduled run or when triggering it manually. Connecting new LinkedIn destination or testing existing ones should now return the correct response.
```

## History of this incident

| When (UTC) | Change | Label |
| --- | --- | --- |
| 2026-09-16 11:42 UTC | Major incident: LinkedIn Sync Failures - server responding with status 426 (this change) | outage |

All Census changes: [timeline](https://rewindex.com/company/census/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/ifc2f54a46c6cc5 · Markdown: https://rewindex.com/change/ifc2f54a46c6cc5.md · JSON: https://rewindex.com/api/v1/changes/ifc2f54a46c6cc5 · Generated 2026-10-18T00:38:47.692Z