Outage in Klaviyo
Elevated errors for SMS opt-ins, scheduling, and sending
Resolved MajorIncident Report
Summary AI Generated
Klaviyo experienced a 40-minute incident affecting SMS subscriptions, SMS sending, and the creation and scheduling of SMS and WhatsApp campaigns. The cause was identified and a fix was implemented, after which system performance stabilized. The incident was fully resolved with all affected services returning to normal operation.
We are currently investigating an issue impacting SMS subscriptions, delays in SMS sending, and errors when creating or scheduling SMS and WhatsApp campaigns. We are working to restore normal service as quickly as possible. We will share another update as soon as we have more information.
Components affected
Klaviyo SMS Sending - OtherTrusted by 1,000+ teams
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Latest Updates ( sorted recent to last )
RESOLVED
4 days ago - at 07/21/2026 09:09PM
SMS subscriptions, SMS sending, and the creation and scheduling of SMS and WhatsApp campaigns are operating as expected. This incident has been resolved.
MONITORING
4 days ago - at 07/21/2026 08:57PM
System performance for SMS opt-in forms, sending, and campaign creation and scheduling remains stable. We continue to monitor closely and appreciate your patience throughout this incident.
IDENTIFIED
4 days ago - at 07/21/2026 08:47PM
We have identified the cause of the issue and a fix has been implemented. We are starting to see improvements in system performance.
INVESTIGATING
4 days ago - at 07/21/2026 08:36PM
We are currently investigating an issue impacting SMS subscriptions, delays in SMS sending, and errors when creating or scheduling SMS and WhatsApp campaigns. We are working to restore normal service as quickly as possible. We will share another update as soon as we have more information.
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