How to (and why) send WhatsApp OTPs?

WhatsApp OTPs are emerging as a modern alternative to SMS OTPs for user authentication, offering higher delivery rates, better user engagement, cost efficiency, and enhanced security through end-to-end encryption. With over 2.8 billion monthly active users, WhatsApp provides a reliable platform for delivering one-time passwords, especially in regions where SMS services are inconsistent or expensive. Unlike SMS, WhatsApp messages are less likely to be delayed or intercepted, making them a preferred choice for businesses aiming to improve user experience and security. Tools like Prelude facilitate the integration of WhatsApp OTPs into existing authentication systems, using a multi-channel approach to optimize delivery based on real-time conditions. This approach not only enhances the reliability and efficiency of user verification but also opens up opportunities for more engaging and branded communication with users, ultimately transforming authentication into a strategic advantage for businesses.