Elevated errors for SMS opt-ins, scheduling, and sending

Summary

Elevated errors for SMS opt-ins, scheduling, and sending

SMS subscriptions, SMS sending, and the creation and scheduling of SMS and WhatsApp campaigns are operating as expected. This incident has been resolved.

• Started

  Jul 21, 2026 · 4:36 PM

• Resolved

  Jul 21, 2026 · 5:09 PM

• Duration

  32m

• Severity

  Major

• ◐

  Investigating

  Jul 21 · 4:36 PM Klaviyo

  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.

• ◆

  Identified

  Jul 21 · 4:47 PM Klaviyo

  We have identified the cause of the issue and a fix has been implemented. We are starting to see improvements in system performance.

• ◉

  Monitoring

  Jul 21 · 4:57 PM Klaviyo

  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.

• ✓

  Resolved

  Jul 21 · 5:09 PM Klaviyo

  SMS subscriptions, SMS sending, and the creation and scheduling of SMS and WhatsApp campaigns are operating as expected. This incident has been resolved.