WhatsApp has fixed charges for different messages based on the intent of the conversation of broadcast messages. And it is different for different countries. It depends on from where you are sending the messages. Here is an overview of pricing (in USD/Message) for different message intents for india: Marketing: 0.0099 USD/Message  Utility: 0.0042 USD/Message  Authentication: 0.0042 USD/Message  Service Conversations: 0.004 USD/Message