WhatsApp business marketing works in India because your customers already live on the app. They check it before email, before Instagram and often before they return a call. This guide explains how to use the WhatsApp Business app and the WhatsApp Business API, which Meta now calls the WhatsApp Business Platform, to market properly: how to collect opt-ins, get message templates approved, send broadcasts people actually open, set up catalogues and measure what each message earns. It is written for Mumbai business owners who want enquiries and repeat orders, not blocked numbers. The short answer: start with the free app, move to the API when you need scale, automation or team access, and never message anyone who has not opted in.
WhatsApp Business app or WhatsApp Business API: which do you need?
The WhatsApp Business app is free, runs on your phone and suits small businesses that handle chats personally. You get a business profile, a product catalogue, quick replies, labels, greeting and away messages, and broadcast lists. The limits show up quickly. Broadcasts from the app only reach people who have saved your number, only a handful of devices can be linked to one account, and there is no proper automation or connection to your CRM, website or billing software.
The WhatsApp Business API has no app of its own. You use it through Meta's Cloud API directly or, far more commonly, through a Business Solution Provider that gives you a dashboard, a shared team inbox, chatbot builders and campaign tools. It lets you message large opted-in lists with approved templates, connect WhatsApp to Shopify, your CRM or booking system, and track delivery, reads and clicks. The trade-off is cost and process: Meta charges per message for most business-initiated templates, and the provider adds a monthly fee. A simple rule works for most businesses. If one or two people answer every chat and your list is a few hundred contacts, the app is enough. If you run ads that open WhatsApp chats, have several agents replying, or want order and appointment updates sent automatically, plan the move to the API.
Signs you have outgrown the app:
How should you set up your WhatsApp Business profile?
Treat your profile like a small website. Use your business name exactly as customers know it, a logo that reads clearly at thumbnail size, a short description that says what you do and where, your working hours, your address with a map pin if you have a store, and links to your website and Instagram. A furniture showroom in Ghatkopar and a home bakery in Borivali need very different descriptions, but both need the customer to know within five seconds that they are in the right chat.
Then set up the tools that save time every day. Write a greeting message that tells people what you can help with and how quickly you reply. Add an away message for after hours. Build quick replies for the questions you answer ten times a day: price list, delivery areas, timings and payment options. Use labels such as New enquiry, Quote sent, Paid and Follow up, so nothing slips through on a busy Saturday. On the API you can also apply for a verified badge through Meta's verification options, which helps trust in categories where fake accounts are common.
How do you build a WhatsApp opt-in list the right way?
Opt-in is the foundation, and Meta takes it seriously. You need clear permission from each person to receive messages from your business on WhatsApp, and they should know what kind of messages to expect. A phone number sitting in your billing software is not consent. Neither is a list bought from a data vendor. India's Digital Personal Data Protection Act also pushes businesses toward clear, recorded consent, so this is good practice well beyond WhatsApp's own rules.
The best opt-ins come from moments when the customer already wants something from you. Add a WhatsApp checkbox, not pre-ticked, at checkout and on enquiry forms. Put a QR code at your billing counter with a reason to scan, such as 'Get our weekly specials on WhatsApp'. Use click-to-chat links on your website and Instagram bio. When someone messages you first, ask in your reply whether they would like updates and offers. Record the date, source and wording of each opt-in in your CRM or provider dashboard. Make opting out just as easy. Add a line like 'Reply STOP to unsubscribe' to marketing messages and honour it quickly. A smaller list of people who want to hear from you will always outperform a large list of people who block you.
Good opt-in sources:
What are WhatsApp message templates and how do they get approved?
On the API, any message you send outside the 24 hour customer service window must be a pre-approved template. Templates fall into three categories: marketing (offers, launches, reminders to come back), utility (order confirmations, delivery updates, appointment reminders) and authentication (one-time passwords). Meta reviews each template and can recategorise it if, for example, a utility message slips in a promotional line. Pricing differs by category, and marketing templates usually cost the most.
Templates that get approved quickly are specific and honest. Use variables for personal details, such as the customer's name, order number or appointment time, but keep enough fixed text that the purpose is obvious. Avoid vague copy like 'Hi, we have something special for you', fake urgency or anything that reads like spam. Add buttons: quick reply buttons for simple choices and call-to-action buttons for a website link or a phone call. An image, video or PDF in the header lifts attention for product launches, menus and brochures.
FAQs: What are WhatsApp message templates and how do they get approved?
How long does template approval take?
Many templates are reviewed within minutes to a few hours, though some take longer. Rejections usually come with a reason, so edit the copy and resubmit rather than creating near-duplicates.
Can I send templates in Hindi or Marathi?
Yes. Templates support many languages, including Hindi and Marathi. Submit each language version for approval and send the version that matches each customer's preference.
What is the 24 hour customer service window?
When a customer messages you, you can reply freely for 24 hours without a template. After that, you need an approved template to restart the conversation.
How do you send WhatsApp broadcasts that people actually read?
WhatsApp messages get read far more often than emails, which is exactly why careless broadcasts hurt. Every send that feels irrelevant pushes people to mute, block or report you. Blocks and reports lower your quality rating, and a poor rating can limit how many people you are allowed to message each day. Think of each broadcast as a personal message you would be comfortable sending to a regular customer you know by name.
Segment before you send. Split contacts by what they bought, where they live, when they last ordered and what they asked about. A salon in Andheri might send bridal package messages only to people who enquired about bridal services, and weekday offers only to customers within a short drive. Keep one message, one idea and one action. Send at sensible hours, usually late morning or early evening, never late at night. For most businesses, two to four marketing messages a month is plenty, while utility updates can be more frequent because people want them.
Test small before you send to everyone. Send a new template to a slice of your list, perhaps 10 to 20 percent, and wait a day. Check replies, clicks and blocks, compare two versions of the opening line if you can, and only then roll out the stronger one. Meta also limits how many marketing messages one person receives from businesses, so not every send will be delivered, which is one more reason to make each message count.
How do WhatsApp catalogues help you sell?
A catalogue lets customers browse your products or services inside the chat without opening a website. In the WhatsApp Business app you can add items with photos, prices, descriptions and links, and group them into collections such as New arrivals, Festive gifts or Best sellers. Customers can add items to a cart and send it to you as an order, which you then confirm, schedule and collect payment for through UPI or a payment link.
Catalogues work best for businesses with a manageable range: bakeries, boutiques, jewellers, home decor stores, caterers, and salons listing their services. Use clean photos on plain backgrounds, write prices clearly and update stock often so customers do not order something you no longer have. On the API, catalogues are managed through Meta Commerce Manager and can sync with a Shopify or WooCommerce store, so product messages always show current prices. Sharing one catalogue link in a broadcast works far better than attaching ten separate images.
How should you use automation and chatbots on WhatsApp?
Automation should help customers get what they want faster, not trap them in menus. Good uses include an instant welcome with three or four buttons such as Prices, Book a visit and Talk to us, answers to common questions on timings and delivery areas, collecting basic details like location and budget before a salesperson takes over, and order, delivery and appointment updates sent automatically from your store or booking system.
Always offer a clear way to reach a human, and make sure someone actually picks up during business hours. A real estate enquiry from an ad, for example, can be qualified by a bot with two quick questions and then handed to a sales executive within minutes. Speed matters more than polish: a lead answered in five minutes is far more likely to convert than one answered the next morning. Route chats by team or language in your provider's shared inbox, and track first response time as one of your key numbers.
Where should your WhatsApp contacts and leads come from?
A WhatsApp list grows from traffic you already have. Add a chat button to every page of your website, especially product and contact pages. Put a wa.me link in your Instagram bio and on your Google Business Profile. Print QR codes on packaging, bills, menus and visiting cards. If you run events or workshops, take registrations through WhatsApp so confirmations and reminders arrive in the same chat the customer started.
Paid traffic speeds this up. Click-to-WhatsApp ads on Facebook and Instagram open a chat directly with a pre-filled message, and in many categories they produce more conversations than form ads because the step feels easy. Conversations that start from these ads also get an extended free messaging window, currently 72 hours, so your follow-ups in that period are not charged. Our click-to-WhatsApp ads guide covers setup and targeting, and our performance marketing team usually pairs these ads with a short bot flow so every chat gets an instant answer, even at 11 pm.
Which WhatsApp metrics should you track?
Track numbers that connect messages to money. At the message level, watch delivery rate, read rate, button click rate and reply rate for each template. At the list level, watch opt-outs, blocks and your quality rating in WhatsApp Manager. A rising block rate is the earliest warning that your frequency or relevance is off, and it usually appears weeks before messaging limits are affected.
Then follow the customer further down the funnel. Use UTM-tagged links in every template so your analytics shows which broadcast drove visits and sales. Our GA4 guide for small businesses explains how to set those up. Count the orders, bookings or store visits that came from each campaign, and divide your total spend, meaning Meta charges plus the provider fee, by those results. Compare that cost per order with email and ads. For most Indian businesses with a healthy opted-in list, WhatsApp turns out to be one of the cheapest ways to bring a past customer back.
WhatsApp marketing mistakes to avoid
Most WhatsApp problems are self-inflicted. The common ones are messaging people who never opted in, using unofficial bulk sender software that gets numbers banned, sending the same promotion to everyone every few days, writing templates that hide the actual offer or overuse capitals and emojis, and running ads to WhatsApp when nobody is available to reply for hours. Each of these feels harmless in the moment, but together they train customers to ignore or block you, and they are much harder to undo than to avoid.
Other mistakes are quieter but cost just as much. Businesses forget the opt-out line, never clean out numbers that stopped engaging, ignore the quality rating until messaging is restricted, and never check which messages actually drive sales. Many also run all customer chats from one staff member's personal phone, so when that person leaves, the conversations and customer history leave too. Move to a shared inbox before that happens, not after.
Quick WhatsApp checklist:
FAQs: WhatsApp marketing mistakes to avoid
Can my WhatsApp number get banned?
Yes. Numbers get restricted or banned after spam reports, use of unofficial bulk tools or policy violations. Use official tools, message only opted-in contacts and keep your quality rating healthy.
Should I buy a WhatsApp contact database?
No. Bought lists carry no consent, lead to blocks and reports, and put both your number and your business at platform and legal risk.
Final thoughts
WhatsApp is the most personal channel most Indian businesses will ever have, and WhatsApp business marketing rewards respect. Used with permission and care, it brings back past customers, closes enquiries faster and turns routine order updates into reasons to buy again. Used carelessly, it burns your number. Start with a clean profile and a real opt-in process, then add templates, catalogues and automation as volume grows. Pair it with email for longer content, as we explain in our guide to email marketing for ecommerce.
If you want a second opinion on your current setup, or help moving from the app to the API, our WhatsApp marketing services team can map it out with you. A good first step is to book a free marketing audit. We will review your WhatsApp setup, website and ads together and share a practical plan you can act on, whether you work with us or not.
