appointment reminder to reduce the loss rate and improve the appointment efficiency. Double factor authentication (FA) security is the top priority of online services. By -factor authentication (FA) based on SMS (FA) increases additional security Denmark WhatsApp Number guarantee by requiring users to enter the code sent to their mobile phones. SMS API helps seamlessly transmit these identity verification code,
thereby enhancing account security. Marketing activities to push promotions, discounts and latest information to customers. With the help of SMS APIs, companies can subdivide the audience, personalized news and arrange marketing activities, so as to maximize the marketing effect. Customers support SMS can become an important tool for customers to support, so that enterprises can provide fast and efficient help.