# Klaviyo: Critical incident: WhatsApp Disruption

**Summary:** Klaviyo reported a critical outage of all WhatsApp functionality, including message sending, integration setup and template editing, due to an upstream provider outage. The incident started at 2026-06-06 17:18 UTC and was marked resolved at 2026-06-06 23:05 UTC, lasting 5 h 47 min; Klaviyo confirmed services were restored after monitoring. _(machine-written, sol)_
- Kind: Major incident · Label: outage (model (Jev))
- Changed: 2026-06-06 17:18 UTC · Detected: 2026-10-17 18:22 UTC
- [Source: https://stspg.io/yr09rv38gw3x](https://stspg.io/yr09rv38gw3x)
- [Company: Klaviyo](https://rewindex.com/company/klaviyo.md)
- Versions: before (none: first archived) → after incident\_version:249/3sh5m87wtk20@5548679ca296
- Change 1 of 1 for this incident

## What changed

**1. Added: Title**

```diff
+ WhatsApp Disruption
```

**2. Added: Impact**

```diff
+ critical
```

**3. Added: Status**

```diff
+ resolved
```

**4. Added: Start time**

```diff
+ 2026-06-06 17:18 UTC
```

**5. Added: Resolved time**

```diff
+ 2026-06-06 23:05 UTC
```

**6. Added: Affected components**

```diff
+ SMS Sending - WhatsApp, WhatsApp Sending
```

**7. Added: Update** (investigating) · 2026-06-06 17:18 UTC

```diff
+ All WhatsApp functionality is currently unavailable for customers due to an upstream provider outage (including sending, integration setup and template editing). The Engineering team is actively investigating and will share more information as soon as it becomes available.
```

**8. Added: Update** (resolved) · 2026-06-06 23:05 UTC

```diff
+ The issue affecting WhatsApp features within Klaviyo has been resolved as of 6:45 PM US/Eastern on June 6, 2026. Our Engineering team has monitored performance and see that WhatsApp services have been restored including message sending, integration setup and template editing. This incident has been resolved.
```

## History of this incident

| When (UTC) | Change | Label |
| --- | --- | --- |
| 2026-06-06 17:18 UTC | Critical incident: WhatsApp Disruption (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._


---
Canonical: https://rewindex.com/change/id7a26a96a05c93 · Markdown: https://rewindex.com/change/id7a26a96a05c93.md · JSON: https://rewindex.com/api/v1/changes/id7a26a96a05c93 · Generated 2026-10-18T00:57:51.439Z