# Klaviyo: Major incident: Campaign Sending Delays

> Major incident: Campaign Sending Delays. Detected 2026-10-29 by Rewindex: what changed on Klaviyo’s status page, with the before/after diff.

Canonical: https://rewindex.com/change/i583dfc282ac01c
Last updated: 2026-10-29T15:03:45Z

**Summary:** _summary pending_
- Kind: Major incident · Label: major (vendor)
- Changed: 2026-10-29 14:55 UTC · Detected: 2026-10-29 15:03 UTC
- [Source: https://status.klaviyo.com/incidents/knd3s9n9g0r7](https://status.klaviyo.com/incidents/knd3s9n9g0r7)
- [Company: Klaviyo](https://rewindex.com/company/klaviyo.md)
- Versions: before (none: first archived) → after incident\_version:249/knd3s9n9g0r7@56803abfa221
- Change 1 of 2 for this incident

Incident page (full timeline): [Campaign Sending Delays](https://rewindex.com/company/klaviyo/incidents/knd3s9n9g0r7.md)
## What changed

**1. Added: Title**

```diff
+ Campaign Sending Delays
```

**2. Added: Impact**

```diff
+ major
```

**3. Added: Status**

```diff
+ identified
```

**4. Added: Start time**

```diff
+ 2026-10-29 14:55 UTC
```

**5. Added: Affected components**

```diff
+ Campaigns - Email Sending, Campaigns - Mobile Push Sending, Campaigns - Text Message Sending, Campaigns - WhatsApp Sending, Email Sending, Mobile Push Sending, Text Message Sending, WhatsApp Sending
```

**6. Added: Update** (identified) · 2026-10-29 14:55 UTC

```diff
+ Some customers are experiencing delays with campaigns sending, and some scheduled campaigns may appear stuck or show no recipients while they process. We have identified the issue affecting a subset of campaign sending. If a scheduled campaign has not started sending, you can cancel and reschedule it to send again. We are working to resolve this as quickly as possible and will share another update shortly.
```

## History of this incident

| When (UTC) | Change | Label |
| --- | --- | --- |
| 2026-10-29 14:55 UTC | Major incident: Campaign Sending Delays (this change) | major |
| 2026-10-29 17:13 UTC | [Incident updated: Campaign Sending Delays](https://rewindex.com/change/r9a47e7526b3854.md) |  |

Next: [change](https://rewindex.com/change/r9a47e7526b3854.md) · 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/i583dfc282ac01c · Markdown: https://rewindex.com/change/i583dfc282ac01c.md · JSON: https://rewindex.com/api/v1/changes/i583dfc282ac01c · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-30T01:15:19.460Z