WhatsApp bot & automation

WhatsApp Bot Development & Automation for Your Business

We build custom WhatsApp bots and automation systems that help businesses capture leads, answer customers, send notifications, manage bookings, integrate CRMs and automate repetitive workflows.

  • Built on Meta’s WhatsApp Cloud API
  • Connected to your CRM, database and backend
  • Designed around your workflow, not a template

Sample workflow

From one message to a business action

  1. Customer

    “Book a token for Dr. Rao”

    message in
  2. WhatsApp conversation

    Cloud API → your webhook

    200 OK
  3. Automation engine

    intent: book_token · branch and slot checks

    validated
  4. CRM / database

    token A-104 saved · contact updated

    written
  5. Business action

    Counter 3 assigned · position 7

    token ready
  6. Notification / team

    “token_confirmed” sent · reception screen updated

    delivered
The short version

WhatsApp automation that turns conversations into business workflows

Build intelligent WhatsApp experiences for lead generation, customer support, notifications, bookings, CRM workflows, appointment systems and business automation.

What is a WhatsApp chatbot?

A WhatsApp chatbot is software that talks to your customers on WhatsApp for you. It receives their messages through the WhatsApp Business Platform, decides what to do, and replies with answers, buttons, forms or pre-approved message templates. It can be a simple menu, or a conversational assistant that checks bookings and creates leads.

What can a WhatsApp bot automate?

Anything repeatable that starts with a customer message: collecting lead details, answering common questions, booking and rescheduling appointments, sending order and payment updates, reminding people about appointments, and passing complicated requests to your team.

How does the WhatsApp Business API work?

Your business gets a WhatsApp Business Account and phone number on Meta’s platform. When a customer messages you, Meta delivers the message to a webhook on your server; your backend decides what to do and replies through the API. To message someone first, or after 24 hours of silence, you use a template that WhatsApp has approved.

What is the difference between a bot and automation?

A bot handles the conversation. Automation connects the conversation to your business: your CRM, database, notifications and staff dashboards. We build the automation behind the conversation.

Use cases

What can we automate on WhatsApp?

Start with the workflow that costs your team the most time. Each of these is a pattern we design and build, and most projects combine two or three.

Lead generation

Capture and qualify enquiries inside the chat, without sending anyone to a form.

  • Name, phone number and requirement
  • Lead source and product or service of interest
  • Qualifying questions before a person steps in
  • Qualified leads sent straight to your CRM

Customer support

Answer the questions you answer every day, and hand over the ones that need a person.

  • FAQs and product information
  • Support requests logged as tickets
  • Escalation to a human with the full conversation
  • Out-of-hours replies that set expectations

Booking & appointments

Let customers book, move and cancel inside the conversation.

  • Booking and instant confirmation
  • Rescheduling and cancellation
  • Reminders before the appointment
  • Follow-ups afterwards

Order & delivery updates

Tell customers what is happening before they have to ask.

  • Order and payment confirmation
  • Dispatch and delivery notices
  • Status updates when something changes
  • Replies to “where is my order?”

Notifications

Event-driven messages triggered by your own system.

  • Signup and login alerts
  • Appointment reminders and payment notices
  • Queue and order updates
  • System alerts for your team

CRM automation

Make WhatsApp a first-class part of your customer record, not a separate inbox.

  • CRM and lead management sync
  • Customer profiles with chat history
  • Sales pipeline stages that trigger messages
  • Support systems kept in step
Sample implementation below

Queue management

Token booking, live position updates and “your turn” alerts for branches, clinics and service counters.

  • Book a token in the chat
  • Position updates as the queue moves
  • “Please proceed to Counter 3”
  • Completion message and feedback

Custom workflows

If a process starts with a customer message and ends with a business action, it can be automated.

  • Approvals and escalations
  • Document and detail collection
  • Data validation against your records
  • Team alerts and daily summaries
Automate My Business

Describe the workflow in a message. We will tell you how we would build it.

Example workflow · not a client case study

WhatsApp queue management: a sample implementation

This is the kind of system we build when a business needs more than a chatbot: a token service, a live queue and WhatsApp messages that follow it from booking to completion.

  1. 1Customer books a token“Book token” in the chat; the system checks the branch.
  2. 2Token created and confirmedA template confirms the token number and expected wait.
  3. 3The queue movesPosition updates go out as people ahead are served.
  4. 4Customer’s turn“Please proceed to Counter 3”, sent the moment the token is called.
  5. 5Visit completedA closing message and, if you want it, a one-tap feedback.

Behind the chat: a token service, one queue per branch and service, counter assignment, a live staff dashboard and a notification worker that decides who needs to hear what, and when.

See the full queue management workflow
Central BranchSample token conversation · fictional
Custom business workflows

If you can define the workflow, we can build the automation

Every WhatsApp automation follows the same shape: a message comes in, something decides what it means, your systems are updated, people are told, and the customer gets an answer.

  1. 01

    Customer sends a message

    Text, a button tap or a form

  2. 02

    Bot understands the request

    Rules or AI, whichever fits

  3. 03

    Backend validates the data

    Is it complete? Allowed? In stock?

  4. 04

    Database is updated

    The booking, token or order is saved

  5. 05

    CRM is updated

    Lead, contact and activity records

  6. 06

    Internal team is notified

    Dashboard, alert or assignment

  7. 07

    Customer receives the response

    Confirmation, next step or answer

Lead capture

  1. Customer message
  2. Qualifying questions
  3. Lead created in CRM
  4. Sales rep alerted
  5. Follow-up after 24 h

Support triage

  1. Customer message
  2. Intent detected
  3. Answer or ticket
  4. Human handoff if needed
  5. Resolution message

Appointment booking

  1. Booking request
  2. Free slots checked
  3. Booking saved
  4. Confirmation sent
  5. Reminder, reschedule option
Integrations

Connect WhatsApp to the software you already use

We don’t just connect WhatsApp to your application. We design the workflow behind the conversation, from the first customer message to CRM updates, notifications, follow-ups and internal actions.

CRM

New chats create or update leads; pipeline stages trigger messages.

ERP

Order, stock and invoice data available inside the chat.

HRMS

Leave, payslip and attendance notices for your staff.

Booking systems

Slots, confirmations and reminders kept in one place.

Queue management

Tokens, positions and counter calls.

E-commerce

Order, payment and delivery updates.

Websites

Forms and buttons that start or continue a chat.

Mobile applications

Updates and support that reach users outside the app.

Internal dashboards

Live conversations, assignments and reports.

Custom software

Any application with an API, or one we can add an API to.

WhatsApp and your CRM, working as one system

When WhatsApp is wired into your CRM, a conversation stops being something your team has to copy by hand. It becomes a lead, an activity on a customer record and, when you want it, the trigger for the next message.

  • A new chat creates or updates the lead, with the source recorded as WhatsApp
  • Answers to qualifying questions are saved in the right CRM fields
  • Conversation history sits on the customer’s timeline
  • Moving a lead to a new stage can send a template message
  • The right salesperson is assigned and alerted straight away

Sample lead record · fictional

M

Meera Nair

+91 98•••• ••210

Qualified
Source
WhatsApp · website button
Interested in
Interior design, 2BHK
Budget
₹8–10 lakh
Timeline
Within 3 months
Owner
Anita (assigned automatically)
Last activity
Replied on WhatsApp, 2 min ago

Next step queued: follow-up template “site_visit_invite” in 24 hours if no reply.

Know the difference

WhatsApp bot vs WhatsApp automation

The two are often sold as the same thing. They solve different problems, and most businesses need both.

WhatsApp bot

Handles the conversation.

  • Greets customers and understands what they want
  • Answers questions, shows menus and buttons
  • Collects details step by step
  • Keeps the chat moving, then stops

On its own, a bot is a smart front desk. What it learns stays inside the chat.

WhatsApp automation

Connects conversations to business processes.

  • Writes bookings, tokens and leads into your systems
  • Triggers notifications, reminders and follow-ups
  • Assigns work to your team and updates dashboards
  • Runs on events from your software, not only on chats

Automation is what makes a conversation change something in your business.

We build the automation behind the conversation.

Meta WhatsApp Cloud API

WhatsApp Cloud API integration, explained

The Cloud API is Meta’s hosted interface to the WhatsApp Business Platform. Here is what an integration involves, in the order it happens.

  1. 01

    Business setup

    A Meta business account, a WhatsApp Business Account and a Meta app are created and linked. Business verification is completed where your use needs it.

  2. 02

    Phone number

    A number is registered for the API and a display name is submitted for review.

  3. 03

    Message templates

    Templates for notifications and first contact are written and submitted for WhatsApp’s approval.

  4. 04

    Webhooks

    Your server exposes an HTTPS endpoint. WhatsApp verifies it once, then delivers incoming messages and delivery statuses to it as signed events.

  5. 05

    API integration

    Your backend calls the Cloud API with an access token to send text, media, buttons and template messages.

  6. 06

    Incoming messages

    Every event is verified, de-duplicated and matched to the customer’s conversation and record.

  7. 07

    Outgoing messages

    Inside the 24-hour customer service window replies are free-form; outside it, approved templates are used. Sent, delivered, read and failed statuses come back to you.

  8. 08

    Backend processing

    Business logic decides the next step, updates your database and CRM, and queues the reply, reminder or alert.

For technical teams: what the messages look like
Incoming message → your webhook (simplified)
POST /webhooks/whatsapp            // your endpoint, HTTPS
X-Hub-Signature-256: sha256=…       // verify with your app secret

{
  "object": "whatsapp_business_account",
  "entry": [{
    "changes": [{
      "field": "messages",
      "value": {
        "metadata": { "phone_number_id": "<PHONE_NUMBER_ID>" },
        "contacts": [{ "profile": { "name": "Meera" }, "wa_id": "91…" }],
        "messages": [{
          "from": "91…",
          "id": "wamid.…",            // use it to de-duplicate retries
          "type": "text",
          "text": { "body": "Book token" }
        }]
      }
    }]
  }]
}
Outgoing template message → Cloud API (simplified)
POST https://graph.facebook.com/<API_VERSION>/<PHONE_NUMBER_ID>/messages
Authorization: Bearer <ACCESS_TOKEN>

{
  "messaging_product": "whatsapp",
  "to": "91…",
  "type": "template",
  "template": {
    "name": "token_confirmed",
    "language": { "code": "en" },
    "components": [{
      "type": "body",
      "parameters": [
        { "type": "text", "text": "A-104" },
        { "type": "text", "text": "Central Branch" }
      ]
    }]
  }
}

Shortened for readability. Real payloads carry more fields, and every inbound request is signature-checked before it is trusted.

Message templates

WhatsApp message templates, in practice

Templates are the pre-approved messages a business uses to start a conversation, or to write after the 24-hour window has closed. These are nine we design again and again. Names, numbers and times are fictional.

booking_confirmationUtility

Hi Meera, your booking for Haircut & styling is confirmed for Sat 12 Dec, 4:30 pm at Studio Lane.

RescheduleCancel
token_confirmedUtility

Your token is A-104 at Central Branch. There are 6 people ahead of you. Estimated wait: 25 min.

Check position
position_changedUtility

Update for token A-104: your position is now 3. We will message you when it is nearly your turn.

token_calledUtility

Token A-104: please proceed to Counter 3 now.

appointment_reminderUtility

Reminder: you have an appointment with Dr. Rao tomorrow at 11:00 am. Reply to confirm or reschedule.

ConfirmReschedule
payment_confirmationUtility

We have received your payment of ₹2,450 for order #10482. Thank you, Arjun.

order_updateUtility

Your order #10482 has been dispatched and should reach you by Fri 11 Dec. Track it here: link.

customer_followupMarketing

Hi Priya, thanks for visiting us last week. How did we do? Your feedback takes under a minute.

Share feedbackNot now
signup_confirmationUtility

Welcome to Northwind Fitness, Kiran! Your membership is active from 1 Jan. Save this number for class updates.

Every template is reviewed by WhatsApp before it can be used, so we write them to be clear, specific and within WhatsApp’s messaging policy.

AI-powered WhatsApp experiences

Use AI where it earns its place

Not every WhatsApp bot needs AI. A booking, a status update or a payment confirmation should behave the same way every time. AI helps when customers write in their own words, or ask things you cannot list in advance.

Rule-based automation

Predictable by design

  • Best for bookings, payments, tokens and status updates
  • Behaves identically every time, so it is easy to audit
  • Inexpensive to run at any volume
  • Needs the customer to follow buttons and steps

AI-powered conversations

Flexible, with guardrails

  • Best for free-text questions and messy phrasing
  • Answers from your own documents and knowledge base
  • Needs testing, limits on what it may say, and a human fallback
  • Costs more to run and to monitor
  • FAQ assistant
  • Lead qualification
  • Product discovery
  • Customer support
  • Intent detection
  • Conversation routing
  • Knowledge-base answers
  • Human handoff

Our approach is to use the simplest design that solves the problem: usually a rule-based flow, with AI only for understanding free text or answering from your knowledge base.

Industries

WhatsApp automation for different industries

The workflows change; the building blocks stay the same. Here is where the patterns on this page tend to fit.

Healthcare

  • Appointment booking and reminders
  • Report-ready and visit notifications
  • Follow-up check-ins after a visit

Education

  • Admission and course enquiries
  • Fee reminders
  • Notices and timetable changes

Retail

  • Order confirmation and tracking
  • Promotions to customers who opted in
  • Product questions and returns

Restaurants

  • Table reservations
  • Order status updates
  • Offers for returning guests

Clinics

  • Walk-in tokens and queue updates
  • Booking, rescheduling and cancellation
  • Follow-up reminders

Financial services

  • Account and payment notifications
  • Lead qualification
  • Support requests with a clear audit trail

Real estate

  • Lead capture from listings and ads
  • Property enquiries answered at once
  • Site-visit scheduling and follow-ups

Events

  • Registrations and confirmations
  • Reminders and schedule changes
  • Day-of updates for attendees

Government & public service

  • Token and queue systems for service counters
  • Citizen notifications
  • Application status updates

Every industry has its own rules about consent, privacy and records. We go through the ones that apply to you before we design anything.

Under the hood

The software around the conversation

A WhatsApp message is only the first event. This is the path it takes through a system we would build for you, and the building blocks behind each step.

  1. WhatsApp

    Customer message or button tap

  2. Webhook

    Signed event delivered to your endpoint

  3. Backend API

    Verifies, de-duplicates, queues

  4. Business logic

    Rules, state and permissions

  5. Database / CRM

    Records and conversation state

  6. Automation

    Reminders, assignments, follow-ups

  7. WhatsApp response

    Reply or approved template

Backend & APIs

Django · Node.js · REST APIs

Your business rules live here: validation, permissions and idempotent handlers, so a retried webhook never creates a second booking.

Data

PostgreSQL

The source of truth for conversations, tokens, bookings and consent records, so a customer can pick up a chat where they left it.

Queues & scheduling

Redis · background workers

Traffic spikes are absorbed, reminders go out on time, and a failed send is retried without blocking the conversation.

Real-time updates

WebSockets

Reception screens, agent dashboards and queue displays update the moment something changes.

Dashboards

Next.js

Screens for your team: live conversations, templates, queues, reports and settings.

Access & security

Authentication · roles

Each branch, agent and manager sees only what they should, and sensitive tokens never reach the browser.

Integrations

Webhooks · third-party APIs

Two-way connections to your CRM, ERP, HRMS, payment and booking systems, so WhatsApp triggers real events inside them.

Event-driven workflows

Automation workflows

A customer action, a payment or a status change sets off the next step automatically, and every step is logged.

Our process

How we build WhatsApp automation

Seven steps, in this order, with you involved at each one that needs your knowledge of the business.

  1. 01

    Understand the workflow

    We map the business process first: who asks what, which systems hold the answer, and where people lose time today.

  2. 02

    Design the conversation

    Every message, button and fallback is drafted and agreed with you before anything is built, including what happens when a customer says something unexpected.

  3. 03

    Connect WhatsApp

    We set up the right API architecture: the WhatsApp Business Account, phone number, webhooks, access tokens and message templates for approval.

  4. 04

    Build the backend

    The business logic, database and APIs that decide what each message should do, written as proper software, not a chain of fragile no-code steps.

  5. 05

    Integrate your systems

    CRM, ERP, HRMS, booking or internal software are connected so a conversation can read from them and write back to them.

  6. 06

    Test the workflows

    We test the happy path and the awkward ones: duplicate messages, customers who stop halfway, failed deliveries, expired sessions and system downtime.

  7. 07

    Launch and improve

    We go live in a controlled way, watch real conversations and delivery data, and refine the flows based on what customers actually do.

Pricing

WhatsApp automation projects

Every project is scoped around your workflow, so we give an estimate instead of a one-size price list. Most start in one of these four shapes.

Starter automation

For simple notification or workflow requirements.

  • One focused workflow
  • A handful of approved message templates
  • Triggered from your website, form or software
  • Delivery status tracking

Request a project estimate

Custom bot

For conversational workflows.

  • Button- and menu-driven conversations
  • Lead capture or booking flow
  • Human handoff to your team
  • Admin view of conversations

Request a project estimate

Business automation

For CRM, API and backend integrations.

  • Two-way CRM, ERP or HRMS integration
  • Custom backend and database
  • Staff dashboards and reports
  • Scheduled reminders and follow-ups

Request a project estimate

Enterprise workflow

For complex, multi-system automation.

  • Several branches, teams or systems
  • Roles, permissions and audit trail
  • High-volume queues and live dashboards
  • Phased rollout with monitoring

Request a project estimate

What shapes the estimate

  • The number of workflows and conversation paths
  • How many systems it connects to
  • Staff dashboards and reporting
  • Expected message volume and branches
  • Languages and AI features

What is billed separately

Meta charges for template messages by category and country. Those charges are billed by Meta to your WhatsApp Business Account, not by us, and Meta revises them from time to time, so we show you the current rates when we scope the project. Hosting and any third-party services are listed separately in the estimate.

Why Stack Bridge Labs

You’re working with a software engineering team, not a plug-in installer

You’re not hiring a marketing agency that simply connects a WhatsApp tool. You’re working with a software engineering team that can build the complete system around WhatsApp: the backend, the data, the integrations and the dashboards your team will use.

  • Custom software development
  • Backend engineering
  • API integrations
  • CRM systems
  • Real-time systems
  • Automation
  • Custom dashboards

Software we’ve built

What that means for your project

  • Integrations are designed as software, with proper error handling
  • You own the code, the data and the deployment
  • One team for the bot, the backend and the dashboards
  • Honest advice, including when WhatsApp is not the right channel
FAQ

WhatsApp bot development: your questions answered

How much does WhatsApp bot development cost?

It depends on the scope, so we estimate each project instead of quoting a flat price. The main drivers are how many workflows the bot handles, how many systems it connects to (CRM, database, payments, booking), whether it needs a staff dashboard, and the expected message volume. A simple notification workflow is a much smaller project than a multi-branch queue system with live dashboards. Separately, Meta charges for template messages by category and country; those charges are billed by Meta, not by us. Tell us the workflow and we will come back with an estimate.

How our projects are scoped →

How long does it take to build a WhatsApp automation system?

It depends on the scope, and on steps that happen on Meta’s side such as business verification and template approval. As a rough guide, a focused notification workflow can go live in around one to two weeks, a conversational bot with backend integration usually takes several weeks, and multi-system projects are planned in phases. We give a timeline together with the estimate.

How we build WhatsApp automation →

Can WhatsApp automate lead generation?

Yes. A bot can greet every new enquiry, ask the questions your sales team always asks (what, how much, when), record the answers, route the lead to the right person and create it in your CRM, all before anyone picks up the phone. Sources such as a website button, a QR code or a click-to-WhatsApp ad can be tracked, so you can see which one produced each lead.

WhatsApp CRM integration →

Can you integrate WhatsApp with our existing CRM?

Yes, as long as your CRM offers an API or webhooks, which most modern ones do. New chats can create or update leads, qualifying answers are stored in the right fields, and stage changes can trigger WhatsApp messages. If you do not have a CRM yet, we can build one, and our own SBL Leads CRM can be connected to WhatsApp.

WhatsApp CRM integration →

Can you build a custom WhatsApp chatbot?

Yes. We design the conversation, build the backend that powers it and connect it to your systems. A chatbot can be button- and menu-driven, rule-based, AI-assisted or a mix, whichever fits the problem.

Do you work with the WhatsApp Cloud API?

Yes. The Cloud API is Meta’s hosted version of the WhatsApp Business Platform and it is what we build on. We handle the integration: webhooks, message templates, access tokens, sending and receiving messages, delivery-status tracking and error handling.

WhatsApp Cloud API integration →

Can WhatsApp automatically send notifications and booking confirmations?

Yes, through approved message templates. When something happens in your system (a booking, a payment, a dispatch, a token being called), your backend triggers a template message to the customer. Customers must have opted in to receive them, and each template has to be approved by WhatsApp before it is used.

WhatsApp notification systems →

Can WhatsApp bots hand over to a human?

Yes. The bot can recognise that a request needs a person, stop answering, tag the conversation, notify the right team member and pass on everything that was said. Your staff reply from a dashboard we build for you, and the bot only resumes if the conversation is handed back.

Can WhatsApp automation connect to our website?

Yes. A website form can start a WhatsApp conversation or trigger a confirmation message, chat events can update your website or backend, and click-to-WhatsApp buttons can carry context such as the page, product or campaign into the first message.

Can you build appointment booking through WhatsApp?

Yes. The bot can offer free slots from your calendar or booking system, confirm the booking, send reminders and let customers reschedule or cancel inside the chat, with every change written back to your system.

Can WhatsApp be connected to a custom application?

Yes, and this is a core part of how we work. Whether your software is built on Django, Node.js or something else, we connect through its API or build the integration layer it is missing. Your application stays the source of truth; WhatsApp becomes another way to reach it.

Custom software development →

Do you support AI-powered WhatsApp bots?

Yes, where AI adds real value: understanding free-text messages, answering from your own knowledge base or qualifying leads. We keep business-critical steps such as bookings, payments and status updates rule-based and predictable, add guardrails and a human fallback around the AI parts, and tell you honestly when a simple flow will do.

AI solutions & automation →

Tell us the workflow. We will tell you how to automate it.

A short message is enough to start: what customers ask you today, which software you use, and what you would like to happen automatically.