Issue
Trial account users receive a prompt asking them to upgrade their account when attempting to create flows in Twilio Studio.
Product
Studio
Environment
Twilio Console
Cause
Twilio updated the Free Trial structure to provide product-specific test usage limits (such as designated SMS, voice, and email allowances) instead of a general promotional credit balance. Under this updated model, trial accounts expire after 30 days and certain advanced products, including Twilio Studio, are feature-gated and unavailable on unverified trial projects.
Resolution
To unlock Twilio Studio and build interactive flows, upgrade your Twilio project to a full account.