WhatsApp automation for small businesses: what you can do free, what needs the paid version, and when to get help

The WhatsApp Business app is free from the Play Store or App Store. It runs on one phone number. Out of the box, it gives you:

• Greeting message. An automatic welcome when someone messages you for the first time, or after a long gap.
• Away message. An automatic reply outside your business hours, so people know when you will answer.
• Quick replies. Saved answers you send with a shortcut, such as "/price" or "/location". Fast for questions you get every day.
• Catalogue. Your products or services with photos and prices, inside WhatsApp.
• Labels. Tags like "New enquiry", "Paid" or "Follow up" so you can sort chats.
• Business profile. Your address, hours, website and description.

For a shop that gets a few dozen messages a day, this is often enough. It costs nothing.

Where the free app stops

• Replies are not really automatic. Greeting and away messages fire once. Anything after that, someone has to type or tap.
• No real chatbot. It cannot ask "Which service?", wait for the answer, and then show a time slot.
• No booking flow, no automatic reminders, no review requests after a visit.
• Limited sharing. A small team can use linked devices, but there is no proper shared inbox with who-answered-what.
• Broadcasts only reach people who saved your number. And sending lots of unwanted messages gets you reported.
• No connection to your other tools. Your booking software, website or ads cannot send messages through it.

If you find yourself typing the same five answers fifty times a day, or forgetting to follow up, you have reached the edge of the free app.

The WhatsApp Business API (Meta also calls it the WhatsApp Business Platform) is what lets software reply, book and remind for you. You do not use it directly. You use it through an official provider. Common ones in India include Wati, AiSensy, Interakt and Gupshup. We name them as examples only. We have no partnership with any of them.

With the API, you can:

• Run a chatbot menu that answers common questions and collects details.
• Send booking confirmations and reminders automatically.
• Send a Google review link after each visit.
• Share one number across a team inbox.
• Connect WhatsApp to your website, booking system or Click-to-WhatsApp ads.
• Message customers who opted in, using approved templates.

What you pay: two separate bills

1. The provider's monthly fee (provider plans: 3 November 2026):

2. Meta's charge per delivered message (Meta list rates, October 2026):

Two things lower this bill:

• Free 72-hour window after an ad. When someone messages you by clicking a Click-to-WhatsApp ad on Facebook or Instagram, conversations in the next 72 hours are free.
• Customers who message first. Replying to them is a service message, and the first 1,000 a month are free.

One thing raises it: providers may add a margin on top of Meta's rate. For example, AiSensy lists marketing messages at about ₹1.09 and utility at about ₹0.145. Compare the per-message price, not just the monthly fee.

Take a small salon in Coimbatore with one WhatsApp number, about 400 customers a month.

• Customers message first and get replies: about 1,200 service messages a month. The first 1,000 are free; 200 more at ₹0.115 = ₹23.
• Booking confirmation and reminder for each visit: 400 visits × 2 = 800 utility messages × ₹0.115 = ₹92.
• One festival offer a month to customers who agreed to receive offers: 300 marketing messages × ₹0.86 = ₹258.

Meta charges come to about ₹373 a month. Add a provider plan, say AiSensy Basic at ₹1,500 a month, and the total is roughly ₹1,900 a month. On a plan with a higher per-message margin the message part would be a little higher.

These are estimates using list prices. Your real bill depends on how many messages you send and which provider you use. The point: for a small business, the messages themselves are usually a few hundred to a few thousand rupees a month. The provider plan is often the bigger part.

WhatsApp is strict, and the rules protect your number.

Opt-in comes first. You may only send marketing messages to people who agreed to receive them from you. Saving a number from a bill, a visiting card or a bought list is not consent. Ask clearly: a checkbox on your booking form, or "Reply YES for offers".

Business-started messages need templates. If you message a customer first, or more than 24 hours after their last message, you must use a template that Meta has approved. Templates are marked marketing, utility or authentication, and priced that way.

Each business needs its own account. Every business needs its own verified WhatsApp Business account and phone number, verified with its own business documents. You cannot share one account across different businesses.

Why bulk-sender tools get numbers banned. Cheap "bulk WhatsApp" software sends thousands of messages from an ordinary number to people who never asked. Recipients block and report it, WhatsApp's systems spot the pattern, and the number gets restricted or banned. You can lose the number your customers already know. The official API with opt-in and templates is the safe way to send at volume.

Quality matters. If many people block or report your messages, even on the API, Meta can lower your sending limits. Send fewer, more useful messages.

Stay on the free app if:

• You get fewer than a few dozen messages a day.
• One or two people handle all chats.
• You mainly answer questions and do not need reminders or bookings sent automatically.

Move to the API if:

• You repeat the same answers all day.
• Missed follow-ups cost you bookings.
• You want reminders and review requests to go out on their own.
• You run Click-to-WhatsApp ads and want every reply answered fast.

You can set up the free app yourself in an evening. Setting up the API (account verification, templates, chatbot flows, connecting it to bookings) takes longer and is where most owners get stuck.

If you want the paid version but do not have the time to set it up and keep it running, that is the work we do. We set up WhatsApp for your business on your own verified account and number, build the replies, booking, reminders and review requests, and keep it running. You pay the provider and Meta directly, at their prices. See WhatsApp marketing in Coimbatore.

If the free app is enough for you, use it. That is a good answer too.

• Meta, WhatsApp Business Platform pricing page (India rates; service message and Click-to-WhatsApp free window), reviewed via rate-card summaries, Oct 2026.
• Wati pricing page, wati.io/pricing (India view), 3 Nov 2026.
• AiSensy pricing page and pricing calculator, aisensy.com, 3 Nov 2026.
• Interakt: rupee prices could not be confirmed on interakt.shop on 3 Nov 2026, so none are shown.
• Meta WhatsApp Business account and business verification rules.

Questions people ask

Related services

• WhatsApp marketing agency in Coimbatore