WhatsApp Business API Pricing Explained (2026)

Meta charges for the WhatsApp API based on a conversation model. A conversation is a 24-hour window that starts when the first message is delivered.

The Four Conversation Categories

1. Marketing: Promotional offers, newsletters, and cart recovery.
2. Utility: Transactional updates like order confirmations and shipping alerts.
3. Authentication: One-time passwords (OTPs) for account verification.
4. Service: User-initiated conversations for customer support.

Free Tier

The first 1,000 Service conversations each month are free, making it incredibly affordable for businesses to handle inbound support.

Tether Flow provides transparent analytics so you can easily track your conversation spend across all four categories.