When a conversation opens, all messages exchanged in the next 24 hours fall under a single billable conversation. The price depends on the conversation category and the country of the customer.
WhatsApp has been shifting this model toward per-template pricing for marketing, utility, and authentication messages, where each template message is billed individually instead of grouped into a conversation window.
Service conversations, started by a customer reaching out, have generally been the cheapest or free up to a monthly allowance. Pricing details vary by market, so merchants should check current rates before planning campaigns.
