# Klaviyo: Major incident: Klaviyo Helpdesk, Customer Hub, and Customer Agent services Outage

**Summary:** Klaviyo reported a major outage affecting Helpdesk, Customer Hub, and Customer Agent’s onsite web chat, starting at 2025-11-28 20:27 UTC. The incident lasted 1 h 38 min and was resolved at 2025-11-28 22:05 UTC; Klaviyo reported restoring access and monitoring stability. _(machine-written, sol)_
- Kind: Major incident · Label: outage (model (Jev))
- Changed: 2025-11-28 20:27 UTC · Detected: 2026-10-17 18:22 UTC
- [Source: https://stspg.io/mjw1v274yhkt](https://stspg.io/mjw1v274yhkt)
- [Company: Klaviyo](https://rewindex.com/company/klaviyo.md)
- Versions: before (none: first archived) → after incident\_version:249/7qx79mck6bkz@652642b2134b
- Change 1 of 1 for this incident

## What changed

**1. Added: Title**

```diff
+ Klaviyo Helpdesk, Customer Hub, and Customer Agent services Outage
```

**2. Added: Impact**

```diff
+ major
```

**3. Added: Status**

```diff
+ resolved
```

**4. Added: Start time**

```diff
+ 2025-11-28 20:27 UTC
```

**5. Added: Resolved time**

```diff
+ 2025-11-28 22:05 UTC
```

**6. Added: Affected components**

```diff
+ Customer Agent, Customer Hub, Helpdesk, K:Service - Customer Agent, K:Service - Customer Hub, K:Service - Helpdesk
```

**7. Added: Update** (investigating) · 2025-11-28 20:27 UTC

```diff
+ Starting at 3:00pm (US Eastern), Klaviyo Helpdesk, Customer Hub, and the onsite web chat functionality of Customer Agent are unavailable. Our team is investigating the issue and will update with progress as soon as possible.
```

**8. Added: Update** (identified) · 2025-11-28 20:46 UTC

```diff
+ Starting at 3:40pm (US Eastern), we have restored access to these services (Customer Hub, Helpdesk, and Customer Agent). We continue to closely monitor these systems.
```

**9. Added: Update** (monitoring) · 2025-11-28 21:11 UTC

```diff
+ Access to these services (Customer Hub, Helpdesk, and Customer Agent) remains stable. We are continuing to closely monitor these systems.
```

**10. Added: Update** (resolved) · 2025-11-28 22:05 UTC

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

## History of this incident

| When (UTC) | Change | Label |
| --- | --- | --- |
| 2025-11-28 20:27 UTC | Major incident: Klaviyo Helpdesk, Customer Hub, and Customer Agent services Outage (this change) | outage |

All Klaviyo changes: [timeline](https://rewindex.com/company/klaviyo/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/id807751b486151 · Markdown: https://rewindex.com/change/id807751b486151.md · JSON: https://rewindex.com/api/v1/changes/id807751b486151 · Generated 2026-10-18T01:52:14.731Z