Twilio experienced a minor incident on July 24, 2026 affecting Studio, lasting 4h 38m. The incident has been resolved; the full update timeline is below.
Affected components
Update timeline
- investigating Jul 24, 2026, 08:52 AM UTC
Our monitoring systems have detected a potential issue with saving phone numbers in studio flow. Our engineers have been alerted and are investigating. We will provide an update when we have more details.
- investigating Jul 24, 2026, 09:13 AM UTC
Our engineers are investigating the issue causing generic errors when saving phone number configurations assigned to a Studio Flow in the Console, and are actively working to deploy a fix. As a temporary workaround, please ensure a valid Status Callback URL is populated when setting your Voice URL to a Studio Flow. We expect to provide another update in 1 hour or as soon as more information becomes available
- investigating Jul 24, 2026, 09:52 AM UTC
Our engineers continue to investigate the issue causing generic errors when saving phone number configurations assigned to a Studio Flow in the Console, and are actively working to deploy a fix. As a temporary workaround, please ensure a valid Status Callback URL is populated when setting your Voice URL to a Studio Flow. We expect to provide another update in 2 hour or as soon as more information becomes available
- monitoring Jul 24, 2026, 11:39 AM UTC
The issue causing generic errors when saving phone number configurations assigned to a Studio Flow in the Console are now operating normally. We will continue to monitor for system stability. We'll provide another update in 2 hours or as soon as more information becomes available.
- resolved Jul 24, 2026, 01:30 PM UTC
We are no longer experiencing generic errors when saving phone number configurations assigned to a Studio Flow in the Console. This incident has been resolved.