SMS

Create and manage the SMS messages you write in Design Studio.

These endpoints only work if your workspace writes SMS in Design Studio. Workspaces that set up SMS on or after July 30, 2026 do. If your workspace set up Twilio before July 30, 2026, it uses our original Twilio integration instead: you write each SMS in the workflow that sends it, and you can't use these endpoints. To check which one your workspace uses, go to Design Studio and click Create. If SMS is one of the options, you can use these endpoints.

To organize your SMS into folders, use the Folders endpoints.