Klaviyo incident

Users with access to multiple accounts being unable to switch accounts

Notice Resolved View vendor source →

Klaviyo experienced a notice incident on December 22, 2025, lasting 1h 30m. The incident has been resolved; the full update timeline is below.

Started
Dec 22, 2025, 10:37 PM UTC
Resolved
Dec 23, 2025, 12:07 AM UTC
Duration
1h 30m
Detected by Pingoru
Dec 22, 2025, 10:37 PM UTC

Update timeline

  1. investigating Dec 22, 2025, 10:37 PM UTC

    We are investigating reports of users unable to switch accounts once logged into Klaviyo

  2. investigating Dec 22, 2025, 11:37 PM UTC

    We identified broader service disruption across the Klaviyo app between 5:55 pm and approximately 6:10 pm ET. While initial reports were limited to account switching, we have since confirmed additional impact to app availability and functionality. The underlying issue has been addressed, and the app is now available. Some customers may continue to experience intermittent issues as systems fully recover. We are actively monitoring.

  3. monitoring Dec 22, 2025, 11:58 PM UTC

    We have confirmed the app is now widely available and are moving the incident to monitoring. 10% of accounts experienced messaging delays during this window. We are working to replay any impacted messages, including unsubscribes, inbound SMS, and flows. Any campaigns that failed during this time will need to be manually resent. We will continue to monitor system performance.

  4. resolved Dec 23, 2025, 12:07 AM UTC

    This incident has been resolved.