Klaviyo incident

Real-time segmentation delays

Resolved after 3 hours 14 minutes, affecting Segments, on September 3, 2025.

resolved Sep 03, 2025, 01:08 PM UTC

Real-time segmentation is processing in real-time, and the incident has been resolved.

Started
Sep 03, 2025, 09:53 AM UTC
Resolved
Sep 03, 2025, 01:08 PM UTC
Duration
3h 14m
Detected by Pingoru
Sep 03, 2025, 09:53 AM UTC

Affected components

Segments

Update timeline

  1. investigating Sep 03, 2025, 09:53 AM UTC

    We are currently experiencing delays in real-time segment processing. Segments may be out of date by up to 3 hours. Flows triggered by segments, as well as segment-targeted forms, may be impacted. We are actively working to restore real-time processing and will continue to provide updates here.

  2. identified Sep 03, 2025, 12:46 PM UTC

    We have identified a root cause and are implementing a fix. We do not currently have an estimate for when processing will be back to real-time. We will post another update once a timeline is available.

  3. resolved Sep 03, 2025, 01:08 PM UTC

    Real-time segmentation is processing in real-time, and the incident has been resolved.

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