Klaviyo experienced a minor incident on November 2, 2025, lasting —. The incident has been resolved; the full update timeline is below.
Update timeline
- monitoring Nov 02, 2025, 05:41 PM UTC
Nov 2, 12:41 EST Resolved - The incident is now resolved. All delayed data for Facebook Integrations, which occurred between 1:00 AM and 2:00 AM, has been fully restored. Nov 2, 08:13 EST Monitoring - A fix has been identified and we are monitoring the results. Nov 2, 02:03 EST Identified - As of 1:00 AM ET (approximately one hour ago), our Facebook integration sync encountered a failure, resulting in a temporary delay in data sync. We have confirmed that no data has been lost, and the system failure is strictly impacting sync times. The root cause has been successfully identified, and our engineering team is actively working on deploying the necessary fix.