If you send SMS from GoHighLevel to people in the United States using a regular local number, you have probably seen the A2P 10DLC banner in your account. Here is what it means in plain language and how to prepare for registration.
What A2P 10DLC means
A2P stands for application-to-person — messages sent by a business system rather than typed by a person on a phone. 10DLC means a standard 10-digit long code, the normal local phone number format in the US.
US carriers require businesses that send A2P messages over 10DLC numbers to register who they are and what kind of messages they send. Unregistered traffic can be filtered or blocked.
The two parts of registration
- Brand — your business identity: legal name, business type, tax ID where applicable, address and website.
- Campaign — what you will send and why: the use case, sample messages, and how people opt in and opt out.
In GoHighLevel this is done from the phone system settings of the sub-account, and the phone numbers are then linked to the approved campaign.
How to prepare (and avoid rejections)
- Make sure your business details match your official records exactly.
- Have a live website that shows who you are and how to contact you.
- Show a clear opt-in: a form with an unticked SMS consent checkbox and wording about message frequency, rates and STOP to opt out.
- Publish a privacy policy that explains how phone numbers are used.
- Write sample messages that match your real use case and include your business name.
Most rejections come from mismatched business details or a missing opt-in. Fix those two and the process is usually smooth.
After approval
Once the brand and campaign are approved and the numbers are attached, your SMS workflows can run on registered numbers. Keep your opt-in wording and message content in line with the campaign you registered — if your use case changes, the campaign may need to be updated too.
Compliance is not the exciting part of automation, but it is the part that makes sure your carefully built follow-up actually reaches people.
