Sinch incident
Sinch Engage Classic – WhatsApp Messaging Disruption
Sinch experienced a minor incident on June 29, 2026 affecting Engage Classic (appengage.sinch.com), lasting 1h 44m. The incident has been resolved; the full update timeline is below.
Affected components
Update timeline
- investigating Jun 29, 2026, 07:44 AM UTC
We are currently looking into a disruption affecting WhatsApp messaging within Sinch Engage Classic. At the moment, both incoming and outgoing messages may not be processed as expected for some customers. Our team is actively working to resolve the issue, and we will share updates here as soon as we have more information.
- identified Jun 29, 2026, 08:26 AM UTC
We have identified the cause of the disruption affecting WhatsApp messaging. Our team is actively working on the resolution in coordination with our external partner to restore full functionality. We are monitoring the progress closely and will provide another update as soon as the service is back to normal.
- monitoring Jun 29, 2026, 09:13 AM UTC
The issue affecting WhatsApp messaging has been resolved, and we are seeing traffic return to normal. We are currently monitoring the system closely to ensure everything remains stable. Thank you for your patience while we worked through this.
- resolved Jun 29, 2026, 09:28 AM UTC
The disruption affecting WhatsApp messaging has been fully resolved, and all services are operating normally. We have confirmed that both incoming and outgoing messages are processing successfully. Thank you again for your patience and understanding.