# Braze: Major incident: Issue impacting EU01

**Summary:** Braze reported a major EU01 degradation affecting Dashboard, Data Processing, Outbound Messaging, REST APIs and SDK Data Collection, starting 2026-04-20 16:18 UTC and resolved at 2026-04-20 19:24 UTC (3 h 5 min). Message backlog and latency degraded data processing; Braze cleared the backlog and confirmed normal processing and stable services. _(machine-written, sol)_
- Kind: Major incident · Label: degradation (model (Jev))
- Changed: 2026-04-20 16:18 UTC · Detected: 2026-10-17 18:22 UTC
- [Source: https://stspg.io/yj64cmn3hg62](https://stspg.io/yj64cmn3hg62)
- [Company: Braze](https://rewindex.com/company/braze.md)
- Versions: before (none: first archived) → after incident\_version:236/9x52j85jcbng@d9d8a5b360eb
- Change 1 of 1 for this incident

## What changed

**1. Added: Title**

```diff
+ Issue impacting EU01
```

**2. Added: Impact**

```diff
+ major
```

**3. Added: Status**

```diff
+ resolved
```

**4. Added: Start time**

```diff
+ 2026-04-20 16:18 UTC
```

**5. Added: Resolved time**

```diff
+ 2026-04-20 19:24 UTC
```

**6. Added: Affected components**

```diff
+ Dashboard, Data Processing, EU 01 Cluster - Dashboard, EU 01 Cluster - Data Processing, EU 01 Cluster - Outbound Messaging, EU 01 Cluster - REST APIs, EU 01 Cluster - SDK Data Collection, Outbound Messaging, REST APIs, SDK Data Collection
```

**7. Added: Update** (investigating) · 2026-04-20 16:18 UTC

```diff
+ We are currently investigating an issue with the EU01 cluster.
```

**8. Added: Update** (identified) · 2026-04-20 16:49 UTC

```diff
+ Braze engineers are actively investigating the issue and working to restore services.
```

**9. Added: Update** (monitoring) · 2026-04-20 17:13 UTC

```diff
+ Braze engineers have identified the issue. Services remain degraded but are improving.
```

**10. Added: Update** (monitoring) · 2026-04-20 17:33 UTC

```diff
+ Braze engineers are processing the remaining backlog of messages. Data processing remains in a degraded state due to backlog and latency issues.
```

**11. Added: Update** (monitoring) · 2026-04-20 18:02 UTC

```diff
+ Braze engineers are continuing to work through the remaining messages in the backlog. We are now seeing improvements in processing speeds, though data processing remains in a degraded performance state while the backlog is fully cleared.
```

**12. Added: Update** (resolved) · 2026-04-20 19:24 UTC

```diff
+ The message backlog has been cleared, and data processing has returned to normal operational bounds.  All services continue to remain stable, and this incident is considered resolved.
```

## History of this incident

| When (UTC) | Change | Label |
| --- | --- | --- |
| 2026-04-20 16:18 UTC | Major incident: Issue impacting EU01 (this change) | degradation |

All Braze changes: [timeline](https://rewindex.com/company/braze/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/i5515737c887ce3 · Markdown: https://rewindex.com/change/i5515737c887ce3.md · JSON: https://rewindex.com/api/v1/changes/i5515737c887ce3 · Generated 2026-10-18T01:54:23.200Z