Klaviyo experienced a minor incident on December 3, 2025, lasting —. The incident has been resolved; the full update timeline is below.
Update timeline
- monitoring Dec 03, 2025, 08:36 PM UTC
Dec 3, 15:36 EST Resolved - Monitoring is complete, and this incident has been resolved. We appreciate your patience throughout this incident. Dec 3, 15:21 EST Monitoring - We successfully reverted the change and have confirmed that Customer Agent Web Chat follow-up prompts are sending as expected. We will continue to monitor to ensure there is no further impact. Dec 3, 15:08 EST Identified - As of 3:00 PM US/Eastern, we confirmed this issue is only impacted Web Chat. Customer Agent via SMS chat is not impacted. We have identified a recent change as the root cause and will be reverting this shortly. We continue to monitor closely and appreciate your patience throughout this incident. Dec 3, 14:57 EST Investigating - We are currently investigating an issue impacting Customer Agent follow-up prompts beginning around 11:20 AM US/Eastern. Follow-up prompts are not appearing after replies from the AI Agent. This prevents end users from continuing the conversation or escalating to a human agent. We'll provide updates as more information is available.