Users with access to multiple accounts being unable to switch accounts

This incident has been resolved.

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, flows, and campaigns. We will continue to monitor system performance.

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.

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