Transactional SMS is a type of SMS message that is sent to customers for the purpose of providing information related to a transaction or account. These messages are typically sent by businesses or organizations to their customers in order to provide important information, such as confirmation of a purchase, delivery details, account balance updates, or transactional alerts.

Transactional SMS are typically sent in real-time and are triggered by specific actions, such as a customer making a purchase or signing up for a service. These messages are usually time-sensitive and require the customer’s immediate attention. Examples of businesses that commonly use transactional SMS include banks, e-commerce websites, airlines, and government agencies.

Transactional SMS are considered to be a more reliable form of communication than promotional SMS because they are exempt from the National Do Not Call Registry and are therefore more likely to be delivered to the customer’s phone. However, it’s important for businesses to ensure that they have the customer’s consent to send these messages, and to provide an option for customers to opt-out of receiving them if they choose.