Guide
The ultimate WhatsApp Business API guide.
Ten chapters covering everything from getting access to staying compliant — written for Indian businesses moving from the WhatsApp app to the official API. Start with the chapter you need; each one stands alone.
What is the WhatsApp Business API?
The WhatsApp Business API is the programmatic way for businesses to send and receive WhatsApp messages at scale. Unlike the app on your phone, the API has no interface of its own — it connects to a platform like InfiQ, which layers a dashboard, shared inbox, campaign tools and automation on top. Through the API you get a verified business profile, pre-approved message templates, rich media, interactive buttons and lists, and as many team members as you need on a single number. For businesses in India, where WhatsApp is the default way customers communicate, the API turns a personal chat app into reliable infrastructure for marketing, support and transactional messaging.
API vs the WhatsApp Business app
The free WhatsApp Business app works well for a one-person operation: one number, a handful of devices, everything manual. The API removes those ceilings. Whole teams can share one number through a shared inbox (10 users on InfiQ Lite, 25 on Growth), chatbots can answer around the clock, broadcasts reach lakhs of contacts instead of small manual lists, and every message can flow into your CRM or order system. The trade-offs are real but manageable — outbound campaign messages must use pre-approved templates, and each delivered message carries Meta's per-message charges. A number can live on the app or the API, not both at once, so growing teams typically migrate once more than two or three people handle chats.
Getting access
You do not apply to Meta directly — access comes through a partner platform. With InfiQ, you sign up, connect or create a Meta Business Manager account, verify basic business details, and register a phone number that is not currently active on the WhatsApp app (a fresh number or a landline both work). You then choose a display name that matches your brand, and Meta reviews it. Most businesses complete the whole flow in 2 hours, and you can explore the dashboard, draft templates and set up your team while approval is in progress.
Pricing explained
WhatsApp API costs have two layers, and it pays to understand both. The first is your platform subscription — InfiQ plans start at ₹999 per month (Lite) covering the dashboard, inbox, CRM and campaign tools, with developer API access and webhooks on the Growth plan at ₹2,999 per month. The second is Meta's per-message charges: since 1 July 2025 Meta bills per delivered message, priced by category — marketing, utility, authentication or service — at rates Meta sets per country. Utility messages and free-form service replies sent inside an open 24-hour window are free today. Budgeting is therefore mostly a function of how many messages you send per month and in which categories.
Message templates
Templates are pre-approved message formats — the only way to start a conversation with a customer outside the 24-hour window. Each template has a category (marketing, utility or authentication), a body with variables like {{1}} for names or order numbers, and optional media headers, footers and buttons. You submit templates for review from the InfiQ dashboard; approval usually takes minutes to a few hours, occasionally up to 48. Well-written templates read like a helpful person, not a flyer. Templates that get blocked or reported hurt your quality rating, so the review process is worth treating as a feature, not a hurdle.
Broadcasts and campaigns
A broadcast sends a template to a segmented, opted-in list — announcements, offers, restock alerts, payment reminders. Unlike the app's 256-contact broadcast lists, API broadcasts scale to whatever your messaging tier allows, with scheduling, per-contact personalisation and automatic pacing so a large send does not trip rate limits. The metrics are the real upgrade: delivered, read and replied rates per campaign, so you learn which message and which segment actually perform. Teams routinely see read rates far above email — which is exactly why disciplined targeting and frequency caps matter, and why every list must be opt-in.
Chatbots and automation
Most inbound WhatsApp questions are repetitive: where is my order, what are your timings, how much does this cost. Chatbots answer those instantly, at any hour, and hand the rest to a human. On InfiQ you build flows without code — keyword triggers, menu-driven journeys, business-hours rules, and forms that capture a lead's details straight into your contact list. The goal is not to hide humans behind a bot; it is to let the bot resolve the routine 60 to 70 percent so your team spends time on conversations that need judgment. Every automated conversation stays visible in the shared inbox.
Shared team inbox
One WhatsApp number, your whole team behind it. A shared inbox turns the API's raw message stream into something a support or sales team can actually run: conversations assigned to agents, labels for stage or topic, private notes, canned replies and full history for every contact. Managers see who is handling what and how quickly, instead of chats being trapped on one person's phone. This is usually the first thing teams feel after migrating from the app — no more forwarding screenshots, no more asking whose phone the customer wrote to.
Integrations and webhooks
The API earns its name when WhatsApp stops being an island. Webhooks stream events — delivered, read, replied, template status changes — to your systems in real time, and the REST API lets your software send messages, manage templates and sync contacts. Typical patterns: order-confirmation messages fired from your store, abandoned-cart nudges, delivery updates from your logistics stack, and replies logged against CRM records. Native one-click integrations with popular CRMs and storefronts are coming soon — connect today via webhooks and the REST API, which cover every event the platform emits.
Compliance and opt-ins
WhatsApp messaging sits inside two sets of rules: Meta's platform policies and Indian data-protection law. The non-negotiable is opt-in — you may only message people who agreed to hear from you on WhatsApp, and you must honour opt-outs immediately. Meta enforces this through a quality rating on your number; too many blocks or reports and your messaging limits shrink. India's DPDP Act adds duties around consent, purpose and data handling. The practical playbook: collect explicit opt-ins with a record of when and how, message with restraint, and make STOP work every single time.
Glossary
Eight terms you'll hear constantly
The WhatsApp API has its own vocabulary. These are the terms that matter in your first month.
Checklist
Your first six steps
Print this, work top to bottom, and you'll go from zero to a measured pilot campaign without skipping the parts that protect your number.
Verify your business
Set up Meta Business Manager with your legal business details. Verification unlocks higher messaging tiers later.
Pick your number and display name
Use a number not active on the WhatsApp app, and a display name that matches your brand — Meta reviews it.
Collect opt-ins first
Add WhatsApp opt-in to your forms, checkout and QR codes before importing any contact list. Keep records.
Draft and submit templates
Start with 3–5 templates: a welcome, an order or booking update, and one offer. Write like a person, not a flyer.
Set up your inbox and automation
Invite agents, define assignment rules and business-hours auto-replies, and build one simple FAQ chatbot flow.
Connect systems and pilot
Wire webhooks or the REST API into your store or CRM, then send a small pilot broadcast and read the metrics before scaling.
FAQ
WhatsApp Business API FAQs
How long does it take to go live on the WhatsApp Business API?
Most businesses on InfiQ are live in 2 hours. Business verification and display-name review are the main variables — you can set up templates, your team and automation while those are in progress.
Do I need a new phone number?
The number you register cannot be simultaneously active on the WhatsApp or WhatsApp Business app. Most teams use a fresh number or a landline; migrating an existing app number is possible but moves it permanently to the API.
How much does the WhatsApp Business API cost?
Two parts: a platform subscription (InfiQ plans start at ₹999/month) and Meta's per-message charges, billed per delivered message by category (per-conversation billing was deprecated on 1 July 2025). See /pricing for plan details and a breakdown of the message categories.
Can I keep using the WhatsApp Business app alongside the API?
Not on the same number — a number lives on the app or the API, never both. Teams usually keep the app briefly on an old number during transition, then consolidate on the API for the shared inbox and automation.
Is there a free trial?
Yes — InfiQ offers a 7-day free trial on the Lite plan. You can explore the dashboard, set up your CRM and draft templates during the trial while your number completes onboarding; the chatbot builder and developer API are part of the Growth plan and above.
Put the guide into practice.
Get your number live on the official WhatsApp Business API in as little as 24 hours — templates, inbox and automation included.