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Outage in Twilio

WhatsApp Sandbox Sending Configuration Issues

Resolved Minor
October 26, 2026 - Started about 18 hours ago - Lasted about 3 hours
Official incident page

Incident Report

Summary AI Generated

Twilio's WhatsApp Sandbox experienced a sender configuration issue lasting approximately 2.7 hours, during which users encountered incorrect display names on sandbox messages and errors when sending preconfigured templates. Engineers identified and mitigated the issue by restoring the correct display name and updating the preconfigured templates. All WhatsApp Messaging services returned to normal operation following the fix.

Users may experience an incorrect display name for sandbox messages and errors sending preconfigured templates. We will provide another update in 1 hour or as soon as more information becomes available.
Components affected
Twilio WhatsApp Messaging

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Latest Updates ( sorted recent to last )
RESOLVED about 15 hours ago - at 10/26/2026 05:40PM

We have monitored and resolved the issue with WhatsApp Sandbox sender configuration. All services are now operating normally at this time.

MONITORING about 15 hours ago - at 10/26/2026 05:37PM

Our engineers have mitigated the issue and are monitoring system performance. The WhatsApp Sandbox display name has been restored and the preconfigured templates have been updated. We will provide another update in 2 hours or as soon as more information becomes available.

INVESTIGATING about 18 hours ago - at 10/26/2026 03:00PM

Users may experience an incorrect display name for sandbox messages and errors sending preconfigured templates. We will provide another update in 1 hour or as soon as more information becomes available.

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