How to Set Up and Use WhatsApp Business App (2026 Guide)

For millions of Indian businesses, WhatsApp is the first place a customer reaches out. A buyer sees your number on Instagram, a hoarding or a friend's recommendation, and the first thing they do is send a message. The free WhatsApp Business app is built for exactly this: it gives a shop or service business a proper business identity, a few automation tools and a tidy way to handle enquiries, all without any monthly fee.

This guide walks through setting up the app from scratch and using its main features well. It also explains, honestly, where the free app stops being enough and what comes next. If you are still deciding between the app and the API, read our companion piece on WhatsApp Business app vs API first.

Download and install WhatsApp Business

WhatsApp Business is a separate app from normal WhatsApp. On an Android phone, open the Google Play Store and search for "WhatsApp Business". On an iPhone, open the App Store and do the same. Install it like any other app.

When you open it the first time, you agree to the terms and enter your business phone number. WhatsApp sends a one-time code by SMS to confirm the number is yours. A few points worth knowing before you start:

• One number, one app. A phone number can be active on either normal WhatsApp or WhatsApp Business, not both at the same time. If your business number already runs on normal WhatsApp, the Business app offers to move those chats across during setup.
• Consider a dedicated number. Many owners use a separate SIM for the business so personal messages and customer enquiries stay apart. This also makes it easier to hand the number to staff later.
• Back up first. If you are moving an existing number, take a chat backup so nothing is lost during the switch.

Build a complete business profile

Your business profile is what a new customer sees when they open your chat. A complete profile signals that you are a real, contactable business, and it answers common questions before anyone has to ask. Go to Settings, then Business tools, then Business profile, and fill in:

• Business name and category, for example "Sharma Electronics, Electronics store".
• Profile photo or logo, clear and recognisable even at small size.
• Address with a map pin, so walk-in customers can find you.
• Business hours, so people know when to expect a reply.
• A short description of what you sell or offer.
• Email and website if you have them.

Spend ten minutes here. A filled-in profile does quiet selling every time a stranger opens your chat.

Add a catalog so customers can browse

The catalog turns your chat into a small storefront. Each item can carry a photo, a name, a price, a description and a link. Customers tap the shop icon in your chat to browse, then message you about what they want. To add items, go to Business tools, then Catalog, and add products one by one or in collections.

Good photos and honest prices do most of the work here. Group related items into collections, for example "Sarees" and "Kurtis", so a browsing customer finds things quickly. For a deeper walkthrough, including tips on collections and sharing product links, see our guide on setting up a WhatsApp catalog.

Use labels to keep enquiries organised

Once a few dozen chats pile up, you lose track of who asked what. Labels are colour-coded tags you attach to a chat or a customer, and they are one of the most useful features in the app. WhatsApp gives you a few default labels like "New customer", "Pending payment" and "Order complete", and you can create your own.

A simple system works well: label a chat "New enquiry" when it arrives, change it to "Quote sent" once you reply, and "Order complete" when it is done. You can then filter your chat list by label to see, at a glance, everyone waiting on a quote or a payment. Labels are personal to your phone, though, which becomes a limit the moment a second person needs to see the same view.

Save time with quick replies

You answer the same questions all day: price, location, delivery time, payment options. Quick replies let you save these answers and drop them into a chat by typing a short shortcut. Set them up under Business tools, then Quick replies.

For example, create a quick reply with the shortcut /hours that says "We are open Monday to Saturday, 10 am to 8 pm. Sunday closed." While chatting, type /hours and the full message appears. Build five or six of these for your most common questions and you will save real time every day.

Set greeting and away messages

These two automatic messages make sure no customer is met with silence. A greeting message is sent automatically the first time someone writes to you, or after 14 days of no contact. An away message is sent when you are unavailable, for example outside business hours. We cover copy-and-paste examples for both in our guide to WhatsApp auto-reply and greeting messages.

Keep them short and human. A greeting like "Thanks for messaging Sharma Electronics. Tell us what you are looking for and we will reply shortly" sets the right tone and buys you time to respond properly.

When a small business outgrows the free app

The free app is excellent for one person on one phone. You start to feel its edges when the business grows:

• More than one person needs to reply. The app is tied to a single phone, so two staff cannot comfortably answer the same number at once. Our piece on WhatsApp for teams explains the options.
• You want to broadcast to large lists. The app's broadcast lists are capped and only reach people who saved your number. Approved template broadcasts at scale need the API.
• You want every chat saved as a lead. Labels help, but they do not build a proper customer history you can report on.

That is where a WhatsApp CRM comes in. IndiaCRM's WhatsApp CRM connects your number to a shared inbox, saves every conversation against a customer record, and adds broadcasts and automation, while your team keeps using WhatsApp the way they already do. Start on the free app, master the basics, and move up when the growth makes it worth it.