How is a WhatsApp conversation counted?
Short answer: on the WhatsApp Business Platform, "conversation" is no longer the billing unit. Since 1 July 2025 Meta charges per delivered template message, priced by category — marketing, utility, or authentication. The 24-hour window you may remember from older pricing still exists, but today it is a free customer service window, not something you're counted or charged for. If you last looked at WhatsApp costs before mid-2025, this is the single most important change to understand — and the one most legacy pricing pages still get wrong.
Quick answer
WhatsApp used to bill per 24-hour "conversation" by category. Since 1 July 2025 it bills per delivered message (marketing/utility/authentication). The 24-hour window is now a free service window where session replies cost nothing — not a counted or charged unit.The old model vs. the model in force today
For years, WhatsApp billing revolved around the word 'conversation': a 24-hour window that opened when your first message in a category was delivered, inside which unlimited messages flowed at no extra charge. That is the model most blog posts and calculators still describe — and it is out of date. On 1 July 2025 Meta retired conversation-based pricing and moved to per-message pricing. You are now charged for each template message that is delivered, and the price depends only on its category, not on how many other messages you sent in the same 24 hours. If you're budgeting from a 'per-conversation' spreadsheet, you're modelling a pricing system that no longer applies.
- Before 1 July 2025: billed per 24-hour conversation window, by category
- From 1 July 2025: billed per delivered template message, by category
- The category (marketing / utility / authentication) still drives the price
- Volume tiers can lower your per-message rate as monthly volume grows
So what is a 'conversation' now?
The term hasn't disappeared — its meaning has narrowed. Today a conversation is best understood as the 24-hour customer service window, and it is a free zone, not a billing meter. When a customer messages your number, a 24-hour service window opens. Inside that window you can reply with normal (non-template) session messages, and those replies carry no per-message WhatsApp charge at all. The window is what keeps live support, order questions, and back-and-forth chat affordable. It refreshes every time the customer sends you a new message. What you pay for is the business-initiated template messages you send — the marketing broadcast, the shipping update, the OTP — regardless of whether a service window happens to be open.
How message categories decide the price
Because billing is now per delivered message, the category you send under is the biggest lever on cost. Each template you submit is assigned a category at approval, and WhatsApp prices the three business-initiated categories differently. Getting the category right isn't just a compliance detail — it directly changes what you pay per send, so mis-categorising a utility message as marketing can quietly inflate a campaign's cost.
- Marketing: promotions, offers, product announcements, re-engagement — the premium category
- Utility: transactional follow-ups to a user action, e.g. order confirmations, shipping and delivery updates, payment receipts, appointment reminders
- Authentication: one-time passwords and login/verification codes
- Service (session) replies inside the 24-hour window: free of WhatsApp per-message charges
A worked example for an Indian business
Imagine a D2C store on Republic Day. It sends a marketing broadcast to 10,000 opted-in customers — that's 10,000 delivered marketing messages, each billed at the marketing rate. A customer taps the offer and replies 'Is this in stock?'. Her reply opens a 24-hour service window, and every answer your agent sends back inside that window is free. She orders; you send an order-confirmation template — that's one delivered utility message. Two days later the parcel ships and you send a shipping update — another delivered utility message, in a fresh interaction, priced on its own. Under the current model you can reason about cost message by message and category by category, which makes forecasting far more predictable than the old window arithmetic ever was.
- Count delivered template messages, not windows, to estimate spend
- Keep genuine transactional updates in the utility category to control cost
- Lean on the free 24-hour service window for live, human support
- Only opted-in, relevant sends protect both quality rating and budget
Where InfiQ fits in
InfiQ is an official Meta Business Partner for the WhatsApp Business API in India. We bill on Meta's live per-message rate card with transparent ₹ pricing (ex-GST), so the numbers you see map cleanly onto the category-based model above — no mystery bundling of the old 'conversation' units. You keep full ownership of your account and BSUID (the Business-Scoped User ID tied to the 2026 WhatsApp usernames change), so you're set up correctly and portably from day one. Our dashboard reports delivered messages by category, which is exactly the unit that now determines your cost.
Frequently asked questions
Is WhatsApp still billed per conversation?+
Then what does the 24-hour window mean now?+
Do I get charged for replying to a customer?+
How does message category affect what I pay?+
How do I estimate my monthly WhatsApp cost under the new model?+
Does InfiQ add its own charges on top of Meta's rates?+
Do failed or undelivered messages count?+
What is a BSUID and why does it matter here?+
Model your real WhatsApp cost, message by message
Talk to InfiQ, an official Meta Business Partner, and get a transparent ₹ estimate built on Meta's live per-message rates — with full BSUID ownership from day one.