How to Send Bulk WhatsApp Messages in 2024 (Step-by-Step Guide)

What Are Bulk WhatsApp Messages?

WhatsApp has 2.7 billion active users — and a 98% message open rate. Compare that to email at 20%, and it's no surprise that businesses are rushing to use WhatsApp for marketing, customer support, and transactional alerts.

But here's the catch: you can't just blast messages from your regular WhatsApp account. WhatsApp bans accounts that do this. To send bulk WhatsApp messages the right way — at scale, legally, without getting banned — you need the WhatsApp Business API.

Can You Send Bulk Messages on WhatsApp for Free?

Not at scale. WhatsApp provides three products:

WhatsApp (personal) — 1-on-1 chats, bulk messaging banned
WhatsApp Business App — Small businesses, broadcast capped at 256 contacts
WhatsApp Business API — Growing businesses, unlimited sending ✅

The free WhatsApp Business App has a "Broadcast List" feature, but it's capped at 256 contacts — and only contacts who have saved your number will receive it. For any real-scale marketing, you need the API.

Step 1: Get Access to the WhatsApp Business API

The WhatsApp Business API is not directly available from WhatsApp. You access it through a Meta Business Solution Provider (BSP) — a company that has official permission to resell API access.

Here's how to get started:

Go to business.facebook.com and create a Meta Business Account (free)
Create a WhatsApp Business Account (WABA) under your Meta Business
Add a phone number — this must not currently be on WhatsApp
Verify your business with Meta (takes 1–3 days)
Sign up with a BSP platform like WABCRM to get your API connection

Step 2: Create and Get Your Message Templates Approved

Before you can send any bulk messages, Meta requires you to pre-approve message templates. Templates must follow these rules:

No spammy language ("WIN NOW!", "FREE GIFT INSIDE")
Must be relevant to the recipient (transactional, informational, or marketing opt-in)
Must include a way for users to opt out

Example transactional template:

Hi {{1}}, your order #{{2}} has been shipped! Track it here: {{3}}

Example marketing template:

Hi {{1}}, our annual sale starts tomorrow. Get 30% off everything → {{2}}

Reply STOP to unsubscribe.

Templates are reviewed by Meta and typically approved within 24 hours.

Step 3: Build Your Contact List (With Opt-In)

This is the most important step most businesses skip — and it's why accounts get banned. You can ONLY message contacts who have opted in.

How to collect WhatsApp opt-ins:

Website widget: Add a "Chat on WhatsApp" button. When users click and message you, they've opted in.
Checkout flow: Add a checkbox: "Get order updates on WhatsApp"
Lead forms: Include a WhatsApp field with: "I agree to receive updates on WhatsApp"
QR code: Print a WhatsApp QR code on receipts, packaging, or in-store signage

Step 4: Upload Your Contact List

Once your template is approved and your list is ready:

Log into your WABCRM dashboard
Go to Contacts → Import
Upload a CSV with columns: name, phone, variables (for personalization)
Map the columns to template variables
Review and confirm the import

Step 5: Launch Your Bulk Message Campaign

In WABCRM:

Go to Campaigns → New Campaign
Select your approved template
Choose your contact list or segment
Schedule or send immediately
Monitor delivery in real-time

WABCRM sends through Meta's official infrastructure — messages show the green verified checkmark, no ban risk, full delivery reports.

Step 6: Handle Replies

This is where most businesses lose money — they send bulk messages but aren't set up to handle replies. If you send a promotional message to 5,000 people and 300 reply "How much does it cost?" — can your team respond within 5 minutes?

Set up before you send:

WABCRM Inbox: All replies land in a shared inbox your team can see in real time
Auto-reply bot: Respond to common questions instantly (pricing, order status, support)
Agent assignment: Route replies to the right team member automatically

WhatsApp Bulk Messaging — Rules You Must Follow

✅ Do:

Only message contacts who opted in
Always use approved templates for the first message
Provide a clear opt-out option ("Reply STOP")
Keep frequency reasonable (not more than 2–3 times per week)

❌ Don't:

Buy phone number lists and blast them
Use third-party tools that scrape WhatsApp Web (these get banned fast)
Use promotional language in transactional templates
Ignore opt-out requests

How Much Does It Cost?

Costs have two components:

1. Meta's per-conversation charge (varies by country):

India: ~₹0.58 per marketing conversation, ~₹0.14 utility
UAE: ~₹1.10 marketing, ~₹0.30 utility
USA: ~₹3.20 marketing, ~₹0.80 utility

2. WABCRM platform fee:

Starter — ₹649/month ($19/month)
Growth — ₹1,649/month ($49/month)
Pro — ₹4,499/month ($129/month)
Enterprise — Custom

Common Questions

Can I send bulk messages without getting banned?

Yes — if you use the official WhatsApp Business API and only message opted-in contacts using approved templates. Unofficial tools almost always result in bans.

How many messages can I send per day?

New numbers start at 1,000 business-initiated conversations per day. This scales up as your number builds trust — typically 10,000/day within a month, 100,000/day after several months.

Do recipients need to save my number?

No. Messages sent through the API are delivered to all recipients regardless of whether they've saved your number.

Can I send images, videos, and documents in bulk?

Yes. WhatsApp API supports rich media templates including images, videos, PDFs, and buttons.

Get Started Today

The businesses winning on WhatsApp right now are the ones who got started early, built their opt-in lists, and set up proper automation.

Sign up for WABCRM — free 14-day trial, no credit card
Connect your WhatsApp Business number — 15-minute setup
Create your first message template — submit for Meta approval
Import your opted-in contacts
Launch your first campaign