Klaviyo outage, 27 August 2026

Issue with Time Delays in Flows

Started
Resolved
27 Aug 2026, 03:42 UTC (after 3 h 33 min)
Impact
Major
Affected
Email Sending, Text Message Sending, WhatsApp Sending, Mobile Push Sending, Processing

Last update from Klaviyo

As of 11:26 PM US/Eastern on August 26, 2026, the repair to process affected flow messages from the window of impact has been completed, and flow sending has resumed as expected across all channels. We apologize for the disruption this caused. This incident has been resolved.

27 Aug 2026, 03:42 UTC

Read the full incident on the official Klaviyo status page

Is Klaviyo down now?

This page is the record of one past incident. For the live status, see Is Klaviyo down right now? - it reads the official status page every 2 minutes.

Other Klaviyo incidents

  1. Analytics Events Processing Delays

  2. Login and page loading issues

  3. Flow sending delays

  4. Flow sending delays

  5. Sending delays for event-triggered flows

  6. Delays in real-time segmentation

  7. Campaign scheduling errors

  8. Delays affecting campaign scheduling, preview emails, and double opt-in confirmations

All recorded Klaviyo incidents