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) | ~₹0.10–0.14 | Part of 1,000 free/month |
| Authentication | Business initiates (OTP) | ~₹0.10–0.14 | Part of 1,000 free/month |
| Marketing | Business initiates (promotional) | ~₹0.58–0.72 | 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 (₹0.10–0.14) not Marketing (₹0.58–0.72). 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.