# MongoDB Atlas: Major incident: Trigger processing may be delayed globally

**Summary:** MongoDB Atlas reported a major global incident affecting Triggers: unordered processing was delayed, and some triggers were not firing or visible in the Atlas UI. The incident started at 2026-10-01 15:41 UTC and was resolved at 2026-10-01 20:54 UTC, lasting 5 h 12 min; trigger processing was operational by 19:59 UTC. _(machine-written, sol)_
- Kind: Major incident · Label: degradation (model (Jev))
- Changed: 2026-10-01 15:41 UTC · Detected: 2026-10-17 18:22 UTC
- [Source: https://stspg.io/bdghxhyf3hbd](https://stspg.io/bdghxhyf3hbd)
- [Company: MongoDB Atlas](https://rewindex.com/company/mongodb-atlas.md)
- Versions: before (none: first archived) → after incident\_version:152/5swmlx3k589x@23fb380237d2
- Change 1 of 1 for this incident

## What changed

**1. Added: Title**

```diff
+ Trigger processing may be delayed globally
```

**2. Added: Impact**

```diff
+ major
```

**3. Added: Status**

```diff
+ resolved
```

**4. Added: Start time**

```diff
+ 2026-10-01 15:41 UTC
```

**5. Added: Resolved time**

```diff
+ 2026-10-01 20:54 UTC
```

**6. Added: Affected components**

```diff
+ MongoDB Atlas App Services and Device Sync
```

**7. Added: Update** (investigating) · 2026-10-01 15:41 UTC

```diff
+ As of approximately 15:00 UTC, some users of MongoDB Atlas Triggers may experience delayed unordered trigger processing. We are investigating and working to restore normal processing.
```

**8. Added: Update** (investigating) · 2026-10-01 18:21 UTC

```diff
+ We are continuing to investigate this issue.
```

**9. Added: Update** (investigating) · 2026-10-01 19:51 UTC

```diff
+ Some users may find that their Atlas Triggers are not firing or are not visible in the Atlas UI. We are investigating both symptoms and working to restore trigger processing. We will provide another update as we learn more.
```

**10. Added: Update** (monitoring) · 2026-10-01 19:59 UTC

```diff
+ Atlas Triggers are firing again, and trigger processing is operational. We are monitoring the service and verifying the status of triggers affected during the incident, including any delayed events. We will provide a further update once verification is complete.
```

**11. Added: Update** (resolved) · 2026-10-01 20:54 UTC

```diff
+ This incident has been resolved.
```

## History of this incident

| When (UTC) | Change | Label |
| --- | --- | --- |
| 2026-10-01 15:41 UTC | Major incident: Trigger processing may be delayed globally (this change) | degradation |

All MongoDB Atlas changes: [timeline](https://rewindex.com/company/mongodb-atlas/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/ia406dfe43f52d2 · Markdown: https://rewindex.com/change/ia406dfe43f52d2.md · JSON: https://rewindex.com/api/v1/changes/ia406dfe43f52d2 · Generated 2026-10-18T00:38:29.653Z