WhatsApp allows medium and large businesses to connect with customers worldwide. Using WhatsApp for business messaging opens the door to improved communication, resulting in enhanced customer engagement, increased trust, and lasting customer relationships.
Before programmatically sending messages to your customers and engaging them more, you need to collect their phone numbers and consent information.
To pass the required information, refer to WhatsApp Opt-in Integration.
To learn about the requirements for using WhatsApp, refer to Getting Started with WhatsApp.