A2P: Sole Proprietor SMS Verification

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Updated: 11/21/2025 | Views: 208

The Campaign Registry (TCR), which governs Application-to-Person (A2P) messaging, requires all businesses registered as a Sole Proprietorship to complete a one-time identity verification to finalize their A2P registration.

Important Note: For practices who previously submitted the form with invalid information, resubmission is required to complete the SMS verification.

Review the SMS Verification FAQs for answers to the most common questions.

SMS Verification

Practices must respond to the text message within 24 hours of receiving the message with a valid mobile phone number.

If a response has not been sent within 24 hours, resend the verification text to restart the process. Any replies after 24 hours of the text message will not be valid.

A text message is sent to the mobile number.
Respond "Yes" within 24 hours of the text message.
A confirmation message is sent. The SMS verification is completed.

Resend SMS Verification

If applicable, System Administrators and providers can resend the text message or change the mobile number to restart the verification process.

Resend Text

The text message is sent to the phone number displayed on the page.

Hover over the User icon and click on Practice Settings. The Practice Settings page opens.
Click A2P Registration. The A2P Registration page opens.
Click Resend Text. A confirmation message displays.
The SMS verification message is sent to the mobile number displayed. Reply to the text message within 24 hours.

Edit Number and Resend Text

Send the verification message to a different mobile phone number.

Hover over the User icon and click on Practice Settings. The Practice Settings page opens.
Click A2P Registration. The A2P Registration page opens.
Click Edit Number & Resend Text. The Edit - Update Mobile Number pop-up window opens.
Enter a different valid mobile phone number.
Click Update and Resend Text. A confirmation message displays.
The SMS verification message is sent to the new mobile number. Reply to the text message within 24 hours.

SMS Verification FAQs

Answers to the most common SMS verification questions.

Question	Answer
Why do I need to complete verification?	TCR requires one-time identity verification for Sole Proprietor registration primarily to verify the identity and mobile phone number of the individual to prevent spam and abuse of the messaging system. Without completing the one-time identity verification, the Sole Proprietor brand identity status will remain unverified and the practice will not be able to finalize their A2P registration.
What happens if I don't reply to the text message within 24 hours?	Without a reply, the practice will not be able to finalize their A2P registration. Resend the text and reply within 24 hours to complete the verification. A response after 24 hours will not be valid for verification.
Who's mobile phone number can I use for verification?	The practice can use any mobile phone number accessible by an individual connected practice (e.g., owner, staff member, clinician) to complete verification.
Can I use the same mobile number for different practices for verification?	Yes. If necessary, a mobile phone number can be used up to three times for verification. If the mobile phone number has already exceeded the allowed amount, use a different valid mobile number for verification.
Can I use the same email address for different practices for A2P registration?	Yes. If necessary, an email address can be used up to 10 times for verification. If the email address has already exceeded the allowed amount, use a different valid email address for A2P registration.
Can I use a voice over Internet Protocol (VoIP) number for verification?	No, VoIP such as Google Voice numbers cannot be used for verification. The mobile phone number must be a valid mobile number from a carrier.
Why am I getting a validation rejection after submitting my registration form?	TCR checks the submission for the following information: If a valid mobile phone number was entered and the number has not been used more than 3 times for verification If a valid email address was entered and the email has not been used more than 10 times for verification If a valid physical address was entered When the information submitted is invalid, TCR rejects the registration and resubmission is required with valid information. To resubmit the registration: Hover over the User icon and click on Practice Settings. The Practice Settings page opens. Click A2P Registration. The A2P Registration page opens. Enter a valid mobile phone number, a valid email address, and/or a valid physical address. Click Resubmit. The registration form is resubmitted. If all of the submitted information is valid, a verification SMS is sent to the mobile number. If any of the submitted information is invalid, the registration will be rejected again and will require resubmission.