21726: Starter brand registrations and updates are temporarily disabled

Starter Brands can no longer be created or updated in Twilio Messaging. Twilio deprecated those operations, and this error appears when a request targets a Starter Brand instead of a supported brand type.

• You are trying to create or update a Starter Brand, and Twilio has disabled that operation in the Console and APIs.
• The business should be registered as a Standard Brand or Low-Volume Standard Brand instead. Direct customers with a Tax ID use that registration path, and Twilio's brand-type guide recommends choosing the brand type based on messaging volume and throughput.
• If you started with a Sole Proprietor Brand, your messaging needs or tax status may require a transition to a Standard or Low-Volume Standard Brand.

• Go to Messaging > Regulatory Compliance > Onboarding and register a Standard Brand or Low-Volume Standard Brand instead of a Starter Brand.
• If you are moving from a Sole Proprietor Brand, create a separate Customer Profile, Brand, and Campaign for the new Standard or Low-Volume Standard Brand.
• If you still need help with an existing Starter Brand, contact Twilio Support.

• Programmable Messaging and A2P 10DLC
• Direct Standard and Low-Volume Standard Registration Guide
• Transition from a Sole Proprietor to a Standard Brand