How to complete your A2P SMS registration correctly so it gets approved on the first try, and how to fix it fast if it gets rejected.
Before your practice can send text messages (appointment confirmations, reminders, and the like) through your platform, US carriers require you to register your business and your messaging "use case." This is called A2P (application-to-person) registration. It applies to both standard 10-digit local numbers and toll-free numbers.
This step is not optional. Until your number is verified, carriers will block or filter your texts, so your appointment reminders may never reach clients. Registrations are reviewed by the carriers, not by us, and they reject anything that looks inconsistent or unclear.
The good news: almost every rejection comes from a small set of fixable mistakes. Follow this guide and you will likely pass on the first submission.
Everything in your submission has to tell the same story.
The carrier compares four things, and they must all match:
If you select a notifications-only use case but your summary mentions "promotions," or your sample message is a reminder but you claim to send marketing, the carrier sees a contradiction and rejects it. (This is rejection code 30496, "Use Case and Use Case Summary Inconsistent.") Pick one lane and keep every field in that lane.