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Outage in Twilio

Increase in 5XX Errors Within Studio Workflow Engine

Resolved Minor
December 10, 2025 - Started 4 months ago - Lasted about 3 hours
Official incident page

Incident Report

We are currently investigating an increase in 5XX errors within our Studio workflow engine. As a result, some customers may experience the following issues, such as Calls may not answer or may hang up unexpectedly and/or inbound messages may not be processed. Our engineering teams are actively working to resolve the issue, and will have an update within 1 hour.
Components affected
Twilio Studio

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Latest Updates ( sorted recent to last )
RESOLVED 4 months ago - at 12/10/2025 08:15AM

The 5xx errors have been resolved, and the Studio workflow engine is operating normally at this time.

MONITORING 4 months ago - at 12/10/2025 06:15AM

We have mitigated the issue impacting our Studio workflow engine, which experienced 5xx errors. Our teams are actively monitoring the situation for any further customer impact. We will provide an update within the 2 hours.

INVESTIGATING 4 months ago - at 12/10/2025 06:04AM

We are continuing to investigate this issue.

INVESTIGATING 4 months ago - at 12/10/2025 05:30AM

We are currently investigating an increase in 5XX errors within our Studio workflow engine. As a result, some customers may experience the following issues, such as Calls may not answer or may hang up unexpectedly and/or inbound messages may not be processed. Our engineering teams are actively working to resolve the issue, and will have an update within 1 hour.

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