Klaviyo experienced a minor incident on November 12, 2025, lasting —. The incident has been resolved; the full update timeline is below.
Update timeline
- monitoring Nov 12, 2025, 09:00 PM UTC
Nov 12, 16:00 EST Completed - The scheduled maintenance has been completed. Nov 12, 13:00 EST In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary. Nov 12, 12:01 EST Scheduled - Between 1:00 PM and 4:00 PM US/Eastern on Wednesday, November 12, 2025, Klaviyo Engineering will perform maintenance on our events infrastructure. During this maintenance window, event analytics may be delayed up to 45 minutes. No data loss will occur and no other Klaviyo functionality will be impacted.