WhatsApp API pricing is conversation-based, not per-message. Understanding this model is essential before estimating your monthly costs. This guide explains every component with real Indian business examples.
The most important thing to understand: WhatsApp charges per conversation, not per message. A conversation is a 24-hour window, all messages within that window cost the same as one conversation.
Example: You send a customer an order confirmation, shipping update, and delivery notification, all within 24 hours. That's 3 messages but only 1 conversation billed. Multi-message sequences cost the same as single messages.
The conversation window opens when the first message is sent (outbound) or received (inbound) between your business and a customer. Any additional messages exchanged within the next 24 hours are part of the same conversation window and do not trigger additional charges.
Service conversations are FREE. When a customer messages your WhatsApp number first, all messages within the next 24 hours are service conversations, charged at ₹0. Customer support, inbound enquiries, and replies to customer messages cost nothing.
| Conversation type | Who initiates | India rate | Free tier |
|---|---|---|---|
| Service | Customer messages first | Free | Always free |
| Utility | Business initiates (transactional) | ~₹0.115 | Part of 1,000 free/month |
| Authentication | Business initiates (OTP) | ~₹0.115 | Part of 1,000 free/month |
| Marketing | Business initiates (promotional) | ~₹0.86 | Part of 1,000 free/month |
Rates may change: Meta adjusts WhatsApp conversation rates periodically. The rates above are approximate for India as of early 2025. Always check the current rates in your Meta Business Manager → Billing for the most accurate figures.
Meta provides 1,000 free conversations per WhatsApp Business Account per calendar month. These apply across all conversation types. For a business just starting out, the first 1,000 conversations are completely free, you only pay WA.Expert's platform fee until you exceed that threshold.
| Monthly conversations | Meta fee | WA.Expert fee | Total monthly cost |
|---|---|---|---|
| Under 1,000 | ₹0 | ₹2,499 | ₹2,499 |
| 2,000 (1,000 utility) | ~₹120 | ₹2,499 | ₹2,619 |
| 5,000 (3,000 utility + 1,000 mktg) | ~₹900 | ₹2,499 | ₹3,399 |
| 20,000 (15,000 utility + 5,000 mktg) | ~₹4,400 | ₹4,999 | ₹9,399 |
| 1,00,000 (80K utility + 20K mktg) | ~₹23,000 | Custom | ~₹30,000+ |
ROI perspective: A D2C brand at 1,000 orders/month spending ₹3,000–5,000/month on WhatsApp API and BSP fees typically recovers ₹80,000–1,50,000/month in RTO reduction, cart recovery, and support savings. The ROI is typically 15–40× at this scale.
Order confirmation + shipping update + OFD notification all sent within 24 hours = 1 conversation charge. Design your notification flows to cluster messages within the same window instead of spreading across multiple days.
When a customer messages you (starting a service conversation), you can send multiple follow-up messages within 24 hours at zero cost. Route customer support, inbound leads, and replies into the service window.
Order updates, appointment reminders, payment receipts, if they're genuinely transactional, classify as Utility (₹0.115) not Marketing (₹0.86). The difference is 4–5× in cost per conversation.
Sending marketing broadcasts to contacts who haven't bought in 12+ months and never engage wastes budget and degrades quality score. Regularly prune your broadcast list to active, high-intent customers.
Test new automation flows during the first 1,000 free conversations each month. Reserve paid conversations for proven, high-ROI flows and customer-facing automation.
WA.Expert's trial gives you full platform access. Meta's 1,000 free conversations/month means your first month's automation costs nothing extra.