# Optimizely: Major incident: Elevated GraphQL API errors and delayed data ingestion in ODP – US region

**Summary:** Optimizely reported a major ODP US incident between 15:05 and 16:10 UTC on October 13, 2026: elevated GraphQL API errors and delayed ingestion. Most GraphQL requests failed; ingestion lagged up to about 65 minutes, with all accepted delayed data processed by 16:10 UTC. Recorded start/resolution: 2026-10-13 18:10 UTC; computed duration: 0 min. _(machine-written, sol)_
- Kind: Major incident · Label: outage (model (Jev))
- Changed: 2026-10-13 18:10 UTC · Detected: 2026-10-17 18:22 UTC
- [Source: https://stspg.io/8sqf6q47fzyp](https://stspg.io/8sqf6q47fzyp)
- [Company: Optimizely](https://rewindex.com/company/optimizely.md)
- Versions: before (none: first archived) → after incident\_version:252/g21d6tv835n4@5863339a345b
- Change 1 of 1 for this incident

## What changed

**1. Added: Title**

```diff
+ Elevated GraphQL API errors and delayed data ingestion in ODP – US region
```

**2. Added: Impact**

```diff
+ major
```

**3. Added: Status**

```diff
+ resolved
```

**4. Added: Start time**

```diff
+ 2026-10-13 18:10 UTC
```

**5. Added: Resolved time**

```diff
+ 2026-10-13 18:10 UTC
```

**6. Added: Update** (resolved) · 2026-10-13 18:10 UTC

```diff
+ Between 15:05 and 16:10 UTC on October 13, 2026, Data Platform customers in the US region experienced delayed data ingestion and elevated error rates on the GraphQL API. From about 15:20 to 16:07 UTC, most GraphQL API requests failed with HTTP 5xx errors or timeouts. Ingestion of new data was delayed by up to about 65 minutes. All delayed data accepted during the incident was processed by 16:10 UTC. Our engineers applied infrastructure changes that resolved the issue in the US region. The same changes have been applied to our other regions to prevent a similar issue there. We apologize for the disruption.
```

## History of this incident

| When (UTC) | Change | Label |
| --- | --- | --- |
| 2026-10-13 18:10 UTC | Major incident: Elevated GraphQL API errors and delayed data ingestion in ODP – US region (this change) | outage |

All Optimizely changes: [timeline](https://rewindex.com/company/optimizely/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/i811bbac61c6975 · Markdown: https://rewindex.com/change/i811bbac61c6975.md · JSON: https://rewindex.com/api/v1/changes/i811bbac61c6975 · Generated 2026-10-18T02:29:37.949Z