Klaviyo experienced a major incident on March 7, 2025 affecting Campaign Email Sending and SMS Sending - Other and 1 more component, lasting 2h 7m. The incident has been resolved; the full update timeline is below.
Affected components
Update timeline
- identified Mar 07, 2025, 06:55 PM UTC
Starting at 1:20 PM US Eastern Time, Klaviyo began experiencing issues with Email and Push Campaigns. Campaigns currently cannot be created, edited, sent, or scheduled, both in the app and via APIs. There is no data loss. The root cause has been identified, and we are actively working to restore campaign sending and scheduling functionality. We will continue to provide updates.
- identified Mar 07, 2025, 07:06 PM UTC
SMS Campaigns are also affected. We are continuing to work on the issue.
- monitoring Mar 07, 2025, 07:47 PM UTC
A fix has been implemented and we are monitoring the results. During the time of the incident (1:20pm-2:30pm US Eastern), campaign sending was delayed. We are currently processing and repairing campaigns that were scheduled or modified during that time.
- resolved Mar 07, 2025, 09:02 PM UTC
This incident has been resolved.