The subscription cost for WhatsApp Business Cloud API Official integration is Rs.5000/- per year. (Exclusive of GST) There are 3 message packs that customers can choose from their choice (all packs below are excl of GST): 10k messages - Rs.1000 50k messages - Rs.3500 1L messages - Rs.5000 Please note that during the first time subscription the 1st message pack of 10k messages is complimentary along with the subscription cost. Meta will do the billing directly to customers (post paid), based on their usage. Per message - 48 paise Pilot - 1000 messages complimentary, 1 month validity. They can make the payment after 1 month. Facebook billing is as usual (48 paise per message