Klaviyo outage on Jun 6, 2026

What happened

Klaviyo reported a major outage starting Jun 6, 2026, 17:18 UTC, affecting WhatsApp Sending. It was marked resolved at Jun 6, 2026, 23:05 UTC.

• The incident lasted 5h 47m from first report to resolution.
• Klaviyo had reported 3 other partial or major outages in the 90 days before it.
• 6 other vendors we track reported a significant incident within 12 hours of it.

Latest update from Klaviyo

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.

Read Klaviyo's official incident report ↗

What our independent monitoring saw

Our independent monitoring of Klaviyo started after this incident, so this report is based on Klaviyo's status page.

Other outages around the same time

Significant incidents other vendors reported within 12 hours of this one.

• Partial outageGrowaveJun 6, 2026, 09:29 UTC

  Growave Webhooks outage

• Partial outageOVHcloud Public CloudJun 6, 2026, 10:12 UTC

  [DE1][Compute - Instance] - Some instances incident notification

• Partial outageOVHcloud Public CloudJun 6, 2026, 11:23 UTC

  [DE][Containers & Orchestration] - Managed Private Registry incident notification

• Partial outageOnceHubJun 6, 2026, 11:50 UTC

  Following a recent platform update, we identified an issue affecting our PayPal integration that may prevent paid bookings from being schedu

• Partial outageOVHcloud Public CloudJun 6, 2026, 16:28 UTC

  [GRA5/GRA7/GRA11][Compute - Instance] - Some instances incident notification

• Partial outageGrafana CloudJun 7, 2026, 01:39 UTC

  Brief Rule Evaluation Failures in prod-eu-west-3

Klaviyo's overall reliability

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