More than two billion people are using WhatsApp worldwide, which is a large way for personal communication, but for businesses with large messages to move around ‘WhatsApp Business API’ is the solution for large customer relationship management for big businesses and small and medium businesses.WhatsApp, owned by Meta (Facebook) came up with the ‘WhatsApp Business’ feature in 2018 for tiny, micro businesses to broadcast messages with up to 256 customers in a go and it upgraded itself in 2021 and came up with an end-to-end, 2-way conversational What App business software for an incorporated customer relationship management, which is known popularly as ‘WhatsApp Business API’ in which you can broadcast messages for over 1000s of clientele