What is A2P Messaging and How Does it Work?

Mia Jensen | March 24, 2025 | clock 5 min read
What is A2P Messaging and How Does it Work? | DemandHub

What is A2P Messaging?

A2P (Application-to-Person) refers to the type of messaging initiated by a business or an application. This also includes notifications, alerts, and other types of communication that take place for marketing purposes.

An example of this could be order confirmation texts, shipping updates, OTPs, and promotional messages that customers often receive from businesses. A2P messaging is also known as business SMS, enterprise SMS, or professional SMS.

What Is the Difference Between A2P and P2P Messaging?

A2P messaging is different from P2P (Person-to-Person) messaging because it is not initiated by an individual. It is also not used for personal reasons. This is why it meets the requirements of Health Insurance Portability and Accountability Act (HIPAA), Telephone Consumer Protection Act (TCPA), and Federal Communications Commission (FCC).

Healthcare practices use A2P messaging to send bulk messages, automated reminders, and ensure HIPAA compliance. A2P messaging is faster and more scalable compared to P2P messaging. It requires little to no manual effort which makes it more efficient for businesses.

How Does A2P Messaging Work?

A2P messaging is used by businesses to contact individuals through an application. These messages are usually for marketing purposes, so they may contain promotions, offers, and campaigns.

A2P messages are also used to share notifications such as alerts, reminders and updates. These alerts are routed through an SMS gateway or API network to a mobile network operator (MNO), which is responsible for delivering them to individuals’ mobile devices.

A2P messages are often pre-scheduled and customised for the recipient by the business. They need to be approved by a mobile carrier to protect recipients from spam.

The recipient will be able to engage with these messages by clicking on a link that is provided in the message. In case of healthcare practices, the link will direct the patient to a review platform, or an online scheduling portal.

A2P messages are especially useful for businesses because they provide delivery reports and read receipts, which allow businesses to track engagement, and effectiveness of the campaign.

If you’re looking to streamline your patient engagement, investing in A2P messaging is a great way to enhance the customer experience.

5 Common Use Cases of A2P Messaging

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  1. Appointment reminders A2P messaging is commonly used to send appointment reminders and confirmations. Healthcare providers can benefit from automated reminders. They help reduce no-shows and ensure that patients are able to confirm or reschedule their appointment efficiently.

  2. Marketing and promotional messages Marketing and promotional messages such as offers, or discounts are usually sent in bulk using A2P messaging applications. This enables businesses to get in touch with more people in less time, enhancing engagement in the process.

  3. Customer support notifications Businesses can use A2P messaging to simplify customer support. This includes tracking updates, handling customer queries, and automating appointment reminders through chatbots.

  4. Two-factor authentication (2FA) Two-factor authentication requires maximum security which is why businesses use A2P messaging to protect sensitive information and effectively verify user identities.

  5. Transaction alerts and confirmations Similar to two-factor authentication, transaction alerts have to be sent through a secure channel to protect the patient’s privacy and sensitive information. This is why businesses such as banks, healthcare providers that offer online payments use A2P messaging services.

Top 7 Benefits of A2P Messaging for Businesses

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Here are some ways A2P messaging can benefit your healthcare practice:

  1. High volume messages A2P messaging allows businesses to send bulk messages quickly and through a secure channel. This makes it easier to deliver appointment reminders, security alerts and promotional offers.

  2. High open and response rates A2P messaging allows businesses to send SMS alerts that have a significantly higher open rate while collecting information such as delivery and read receipts. This way you can tell which campaigns are performing and where you can improve.

  3. Improved customer engagement A2P messaging is a great tool to have on hand for maintaining consistent communication with patients, especially as your business grows. Reaching a large number of patients quickly and efficiently gives practices the ability to stay connected to their patients and maintain their quality of care.

  4. Enhanced security A2P messaging is a HIPAA-compliant method of communication that protects patient data. This makes it ideal for healthcare businesses looking to improve patient communications.

  5. Cost-effective communication A2P messaging is a cost effective way to manage patient interactions. It enhances customer service, while freeing up precious practice time and resources.

  6. Integrations A2P messaging integrates seamlessly with EHR and other practice management systems, allowing you to automate patient communication and customer management easily.

  7. Personalization A2P messaging is used to send bulk messages, but these messages don’t have to be generic. Personalised campaigns are far more effective in enhancing patient engagement and also help build lasting relationships with patients.

Improve Customer Engagement with DemandHub

DemandHub is a practice management software designed to make practice operations as seamless and efficient as possible. Whether it is appointment reminders, promotions, offers or personalised recall, using a two-way messaging software like DemandHub can help practices foster stronger, long-lasting relationships.

If you want to learn more about DemandHub, book a demo today.

Frequently Asked Questions

How do businesses ensure compliance in A2P messaging?

A2P messaging services need to adhere to TCPA, GDPR and HIPAA guidelines. This allows businesses to ensure that their messages are sent through a safe channel and prevents legal issues in the process.

Can A2P messaging be used for marketing?

Yes, A2P messages are used for marketing purposes, such as sharing event reminders, promotional offers, and product launches.

What are the benefits of using A2P messaging in business communication?

Here are some of the benefits of using A2P messaging for businesses.

  • High open rate.
  • Instant delivery for bulk messages.
  • Marketing automation capabilities.
  • Real time engagement and analytics.
  • Secure messaging platform for two-factor authentication.
  • HIPAA compliance.
How do I choose the right A2P messaging provider?

If you are interested in using A2P messaging to reach your patients more consistently, we recommend trying out DemandHub for its efficient patient interaction management and scalability.

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