Klaviyo experienced a critical incident on June 6, 2026 affecting WhatsApp Sending, lasting 5h 47m. The incident has been resolved; the full update timeline is below.
Affected components
WhatsApp Sending
Update timeline
- investigating Jun 06, 2026, 05:18 PM UTC
All WhatsApp functionality is currently unavailable for customers due to an upstream provider outage (including sending, integration setup and template editing). The Engineering team is actively investigating and will share more information as soon as it becomes available.
- resolved Jun 06, 2026, 11:05 PM UTC
The issue affecting WhatsApp features within Klaviyo has been resolved as of 6:45 PM US/Eastern on June 6, 2026. Our Engineering team has monitored performance and see that WhatsApp services have been restored including message sending, integration setup and template editing. This incident has been resolved.