[ A2P ] Step 9: Register for A2P

Important: For a complete overview of all steps and best practices involved in the A2P 10DLC registration process, please refer to the main article: "A2P 10DLC Campaign Approval Best Practices."

  1. Go to Trust Center > Scroll down and click on the blue button that says "Start Registration Now" at the bottom of the page.

  1. All the information for the A2P brand registration will be pulled in from your "Business Profile" settings. This is why we went over what to enter earlier.
  2. Campaign Type:
    • Select Low Volume Standard( up to 6,000 segments/day ) - or - High Volume Standard( up to 600,000 segments/day ).
    • Acknowledge the fees: Registration and campaign fees vary and may change over time. Check the current fee structure during your registration process

Approved Campaign Example


Campaign Details

Campaign Use case: Low Volume Mixed ( Recommended)


Use Case Description

The use case description field under Messaging Use Case outlines the specific purpose and intended usage of your SMS campaign. It’s a critical requirement for approval because it informs carriers about how and why you are sending messages, ensuring compliance with regulations and transparency.


The description must explain what type of SMS the client will be sending (e.g., marketing messages, appointments, notifications, etc.). This description must match both the Campaign Use Case and the sample messages. If you outline all the use cases, you will need to provide the opt-in link for each one


The "Use Case Description" must directly align with the language you used in your consent checkboxes. The message use cases described in the campaign must be explicitly reflected in the opt-in checkbox wording.


  • Non-marketing example: If a campaign description includes message types such as appointment reminders, order updates, or service notifications, the consent checkbox must reference those same message types rather than using generic language like “Non-marketing messages”

  • Promotional example: If a campaign description includes promotional messages such as “special offers or discounts”, the consent checkbox must reference those same message types rather than using generic language like  ”Marketing messages” 

Important: If you have an EIN for your company but you want to use a different brand name for your messages, you can add this sentence "We are doing DBA as [Business_Name]" in the Campaign Use Case.  Make sure the rest of the submission, including the website,  Privacy policy, Terms & Conditions, and the business name shown in opt-in form checkboxes, matches the declared [Legal Business Name] DBA [DBA Name]. You can register the same EIN for up to 10 brands.


Use Case Description Examples

  • "This campaign sends appointment confirmations, message notifications, and offers for chiropractic adjustments to existing patients or new patients who have opted in to receive SMS notifications. The communications are sent via the website form."


  • "This campaign targets customers who have opted in to receive marketing updates via our subscription form. Messages will include promotional discounts, new product announcements, and exclusive offers. Users can opt out anytime by replying STOP."

  • "This campaign sends appointment confirmations and updates to customers who have scheduled services with [[[ Insert Your Business Name ]]]. Our specific use cases include:
    • Reminder messages sent 24-48 hours before the client's scheduled appointments.
    • Account information delivery including estimate details, pricing, and payment confirmations.
    • Confirmation messages when a customer books an on-site/online website or installation appointment.
    • Day-of-service notifications about technician arrival times.
    • Rescheduling notifications if an appointment time need to change.
    • Follow-up communications after service completion.
    • Order delivery updates.

Note: The Campaign use case description section is used to describe the purpose of this campaign. So, be descriptive about your specific use case. Explain your opt-in process in detail.

Message Sample #1 Examples ( Non-Marketing Message )


  • Hey Jane! This is [[[ INSERT YOUR NAME ]]] from [[[ INSERT YOUR BUSINESS NAME ]]]. Just a friendly reminder your appointment is in 24 Hours. If this time does not work for you let me know. You can reschedule your call here - [[[ INSERT THE SCHEDULING PAGE LINK ]]]. Reply STOP to unsubscribe.

  • Hey Joy! This is [[[ INSERT YOUR NAME ]]] from [[[ INSERT YOUR BUSINESS NAME ]]]. I see that you weren't able to make it for our appointment. Would you like to reschedule? - [[[ INSERT THE SCHEDULING PAGE LINK ]]]. Reply STOP to unsubscribe.

  • Hey Mary, it's [[[ INSERT YOUR NAME ]]] from [[[ INSERT YOUR BUSINESS NAME ]]]. Thanks for opting in to receive SMS notifications. I just saved a time for you on Thursday, February 15, 2026, at 3:00 PM, and I'll see you then! If anything changes, just let me know. If you need to opt out, reply STOP.

  • Hi Lily, this is [[[ INSERT YOUR NAME ]]] from [[[ INSERT YOUR BUSINESS NAME ]]]. Your appointment has been confirmed for February 1st at 11 AM PDT. If this time does not work for you please let us know. Please reach out to [[[ INSERT YOUR BUSINESS PHONE NUMBER ]]] in case you need to reschedule. Reply STOP to unsubscribe.

Message Sample #2 ( Marketing Messages )





Note: Provide examples of messages you will send. Use the phone number that you purchased through LC Phone or Twilio inside of these message templates. If you use a text message opt-in, make sure to include supporting images or Google Doc links.


The message will include an embedded link:
Yes [ Check this box if you will be sending links in your text messages ]

The messages will include phone numbers:
Yes [ Check this box if you will be sending a phone number in your text messages ]

The messages include age gated content as defined by Carrier and CTA guidelines.

For most people the answer to this question will be no, and you will leave this box unchecked. [ Check this box if your messages will contain age gated content as defined by Carrier and CTA guidelines ]


The messages include content related to direct lending or other loan arrangement.

For most people the answer to this question will be no, and you will leave this box unchecked. [ Check this box if your messages will contain content related to direct lending or other loan arrangement ]


How do lead/contacts consent to receive messages?

End users opt in through a form on the website: https://www.abccompany.com/contact-us, via the website chat widget, and also through our POS system at our office, with consent language similar to that on our website.


Click here to see another example of how to respond to this question.

Note: Make sure to include the line to you "Opt-in Webpage" here for this question. The opt in information on the other hand must be described in the message flow description. The website needs to have privacy policy and terms of service, and a checkbox for message consent (See example above, under "Step 5: Guidelines for Creating Your Opt-in Form"). 

Opt-in Message

Jane, you have successfully opted-in to receive notifications and promotional SMS from [[[ INSERT YOUR BUSINESS NAME ]]]. Standard Msg & data rates may apply. Msg frequency varies. Please reply STOP if you need to Opt-out in the future.


  1. Submit your registration.