If you want to automate WhatsApp marketing professionally, this guide will explain everything step by step. No confusion. No missing steps.
Step 1: SIM & Number Requirements (Most Important)
Before applying for WhatsApp Business API, understand this carefully.
You must use a number that is NOT currently active on WhatsApp mobile app.
Option 1: Use a Brand New SIM
- Purchase a new SIM card
- Do not install WhatsApp on it
- Use it only for API verification
Option 2: Use Existing SIM (If Not On WhatsApp)
- If WhatsApp is installed, delete WhatsApp account first
- Uninstall WhatsApp app
- Then apply for API
WhatsApp API numbers cannot run inside normal WhatsApp mobile app. All communication will happen through WhatChimp dashboard.
Step 2: Apply for Official WhatsApp Business API
1. Register Account
Use this link to start:
2. Submit Business Details
- Business name
- Website URL
- Business category
- Official email
- New SIM number
3. Connect Facebook Business Manager
You must:
- Create Facebook Business Manager
- Add business page
- Verify ownership
Meta reviews your business profile. Approval usually takes 10 minutes to 24 hours.
Step 3: Setup WhatsApp Chatbot
After API approval, go to dashboard → Automation → Chatbot Builder.
Create Welcome Flow
- Add greeting message
- Add button options
- Set default reply
Add Keyword Automation
Example triggers:
- “Price”
- “Offer”
- “Book”
When users type these words, automation replies instantly.
Advanced Flow Setup
- If user clicks product → Send product details
- If no reply in 1 hour → Send reminder
- If qualified → Assign to sales agent
Always test chatbot before going live.
Step 4: How to Send Bulk WhatsApp Broadcast
Create Approved Template
- Go to Templates
- Select Marketing or Utility
- Write message with variables like {{1}}
- Submit for Meta approval
Approval takes 10–30 minutes normally.
Upload Contacts
- Go to Contacts → Import CSV
- Add name & phone number
- Only upload opted-in users
Create Broadcast Campaign
- Select approved template
- Select contact segment
- Schedule message
- Track delivery reports
Never spam unknown numbers. It can cause restrictions.
Step 5: Click To WhatsApp Ads Setup
This connects Meta Ads to WhatsApp automation.
Inside Facebook Ads Manager:
- Create new campaign
- Select objective: Messages
- Choose WhatsApp as destination
- Connect your API number
After Ad Click:
- User clicks ad
- WhatsApp opens
- Chatbot sends welcome flow
- Lead gets qualified automatically
This is powerful for lead generation and ecommerce.
Common Mistakes to Avoid
- Using personal WhatsApp number for API
- Sending promotional messages without approved template
- Uploading non-opted-in contacts
- Over-automating without human support
Final Practical Advice
Automation works best when:
- You have clear objective
- Your messages are simple
- You respond quickly when chatbot escalates
Start small. Test properly. Then scale campaigns.