WhatsApp Business API Pricing in India: What Meta Actually Charges
Meta charges per conversation — not per message, not per number. Understanding the four conversation categories, the free quota and how costs stack with your CRM subscription lets you budget accurately. This page explains Meta's pricing model; for 3Sigma CRM plan pricing, see WhatsApp CRM pricing India.
Important: Meta updates WhatsApp API conversation rates periodically. The rates and free quotas described here are the model as of mid-2026 — always verify exact current rates on Meta's official Business Messaging Pricing page.
Two separate bills: Meta + your CRM
When you use WhatsApp Business API through a CRM like 3Sigma, you pay two separate parties. Understanding this prevents billing surprises.
Meta (Facebook)
- Per-conversation charges (4 categories)
- Charged monthly in USD (or local equivalent)
- Free conversation quota (service conversations)
- Billed via your Meta Business Manager account
3Sigma CRM
- CRM platform subscription (per user)
- Billed in INR monthly / quarterly / yearly
- Includes pipeline, calling, inbox, automation, AI bot
- Does NOT include WhatsApp conversation charges
The four conversation categories
Meta classifies every conversation into one of four categories. Each category has a different rate. The category is determined by the type of template you use (or the fact that the customer messaged first).
| Category | Common examples | Who initiates | Cost (relative) |
|---|---|---|---|
| Marketing | Promotional messages, offers, new product launches, re-engagement campaigns | Business initiates | Highest rate |
| Utility | Order updates, payment reminders, appointment confirmations, document requests | Business initiates | Mid rate |
| Authentication | One-time passwords (OTP), login verification, sign-up codes | Business initiates | Mid rate |
| Service | Any reply to a message the customer sent first within 24 hours | Customer initiates | Lowest rate |
Exact INR/USD rates are set by Meta and change over time. Check Meta's Business Messaging pricing page for current rates.
How the 24-hour conversation window works
Meta doesn't charge per message — it charges per 24-hour conversation window. Here's how it works in practice:
- 1Customer messages you first — A lead on JustDial clicks your number and sends "What are your rates?" on WhatsApp. A 24-hour service window opens. Any messages you send within that window are in the service category (cheapest).
- 2You message them first — You send a campaign template to a list (e.g., "Hi Rahul, we have a new offer on home loans"). This is a marketing conversation (highest rate). You must use a Meta-approved template.
- 3Within the window, no extra charge — Once a conversation window opens, every additional message in that window (on both sides) is counted as one conversation. Sending 5 messages to the same customer in 6 hours = 1 conversation charge, not 5.
- 4After 24 hours — The window closes. To message the customer again you need a new template message; the conversation restarts and you pay for a new window.
Don't need campaigns yet? Start with Coexistence
If you're a small team and just want WhatsApp chats, a pipeline and calling inside one CRM — without running bulk campaigns — you don't have to set up the full API on day one.
3Sigma's WhatsApp Coexistence connects your existing WhatsApp Business App number to the CRM. You keep using the WhatsApp app on your phone; the CRM gets your contacts, chat history and new chats. You don't pay Meta per-conversation charges for coexistence — you just use WhatsApp as you normally would, but now it's inside the CRM with a pipeline, calling and follow-up automation.
When you're ready to run templated campaigns, bulk broadcasts or chatbots, you graduate to the full WABA setup — and the per-conversation billing kicks in then.
Learn more: How 3Sigma's WhatsApp CRM works — including Coexistence, team inbox, campaigns and the AI bot.
Practical tips to keep WhatsApp API costs low
Reply fast to incoming messages
Every lead that messages you first opens a free/cheap service window. Reply within minutes — you get 24 hours to chat without a marketing-category charge.
Categorise templates accurately
If a message is genuinely transactional (appointment reminder, payment due), submit it as utility — it's cheaper than marketing. Meta audits templates.
Don't broadcast to cold lists
Sending a marketing template to people who haven't opted in risks blocks and marks your number as spam. Quality conversations beat volume.
Monitor usage in the CRM
3Sigma shows WhatsApp campaign delivery stats. Track which campaigns generate replies (opening service windows) vs. dead-end broadcasts.
Use automation for follow-up inside the window
After a lead messages you, a 3Sigma automation can send follow-up messages within the same 24-hour window — charged as service conversations.
AI bot chats inside service windows are service-rate
When a lead messages first and the AI bot replies, those conversations run at the service rate — your cheapest category.
Related pages
3Sigma CRM Pricing India
What 3Sigma's CRM subscription costs — plans, INR pricing, free trial. Separate from Meta's API charges.
WhatsApp CRM
The complete WhatsApp CRM — pipeline, calling, team inbox, sequences and the AI bot.
WhatsApp CRM with Calling
The only WhatsApp CRM with a SIM-based auto-dialer built in — call and chat from the same app.
Frequently asked questions
How does WhatsApp Business API pricing work in India?+
Meta charges per 24-hour conversation window, not per message. If a customer messages you and you reply multiple times within 24 hours, that counts as one conversation. Rates vary by conversation category (marketing, utility, authentication, service) and are set by Meta in USD, billed monthly. Check Meta's official Business Messaging pricing page for current India rates as they are updated periodically.
What are the different WhatsApp API conversation categories?+
Meta divides conversations into four categories: (1) Marketing — promotional messages, offers, campaigns you initiate. (2) Utility — transactional messages like order confirmations, payment reminders, appointment updates. (3) Authentication — OTPs and verification codes. (4) Service — messages in response to a user who contacted you first (user-initiated). Each category has a different rate, with service conversations typically cheapest.
Are any WhatsApp API conversations free?+
Yes. Meta gives a quota of free service conversations per WhatsApp Business Account per month (the exact number and conditions are set by Meta and change over time — check Meta's current pricing page). Marketing, utility and authentication conversations are charged from the first one. In addition, your first 1,000 conversations per month were historically free, but Meta's free-tier policy has changed — always verify the current terms on Meta's site.
Does 3Sigma charge separately for WhatsApp API conversations?+
No. 3Sigma's CRM subscription is separate from Meta's per-conversation charges. You pay 3Sigma for the CRM platform (pipeline, calling, team inbox, AI bot, automation, reports). Meta bills you for the WhatsApp API conversation usage. These are two separate invoices.
Do I need the WhatsApp Business API to use 3Sigma?+
No. 3Sigma supports WhatsApp Coexistence — you connect your existing WhatsApp Business App number without migrating to the full API. You keep using WhatsApp on your phone; the CRM gets access to chats, contacts and history. The full API (with templates, campaigns and chatbots) requires an official WABA setup, but you don't need it on day one.
What is a WhatsApp template message and when is it needed?+
A template message is a pre-approved message format used to initiate business-initiated conversations (marketing, utility, authentication). You submit the template to Meta for approval before use. Examples: 'Hi {{name}}, your appointment on {{date}} is confirmed.' You can send free-form messages only inside the 24-hour service window after a customer contacts you first.
How do I keep WhatsApp API costs low in India?+
Keep API costs low by: (1) replying quickly so customer queries stay within the free service window, (2) categorising campaigns accurately as utility rather than marketing where genuinely transactional, (3) not sending unnecessary broadcast messages to cold lists, (4) monitoring your template usage in the Meta Business Manager and 3Sigma dashboard.
Want to see what 3Sigma costs for your team?
Book a free demo and we'll walk you through the CRM subscription cost and how Meta's per-conversation pricing applies to your use case.
Or see the 3Sigma CRM pricing page for plan details.