How to send bulk messages on whatsapp

You need to send the same message to 100 customers. Or 500. Or 1,000.

You could sit there and manually copy-paste the message one by one. That would take hours and destroy your sanity.

Or you could learn how to send bulk messages on WhatsApp properly. The right way. The way that doesn't get your account banned.

I'm going to show you exactly how to send multiple messages on WhatsApp, whether you need to reach 50 people or 5,000, and how to do it without violating WhatsApp's rules.

What Does Sending Bulk Messages on WhatsApp Mean?

Sending bulk messages means sending the same or similar message to multiple people at once. Instead of texting each person individually, you send one message that reaches many people.

This is useful for:

• Announcing sales or promotions
• Sending appointment reminders
• Sharing important updates
• Marketing new products
• Event invitations
• Customer notifications

But here's the catch: WhatsApp has strict rules about bulk messaging to prevent spam. Do it wrong and your number gets banned.

The Wrong Way to Send Bulk WhatsApp Messages (Don't Do This)

Before we get into the right methods, let's talk about what NOT to do.

Don't Use Unauthorized Third-Party Apps

You'll find tons of apps and software claiming they can send WhatsApp messages in bulk automatically. Most of these violate WhatsApp's terms of service.

Using them can result in:

• Immediate account ban
• Permanent number block
• Loss of all your contacts and chat history

WhatsApp actively detects and bans accounts using unauthorized automation tools.

Don't Spam Random Numbers

Sending messages to people who never gave you permission is spam. It's annoying, illegal in many places, and will get you banned fast.

Only send bulk messages to people who:

• Gave you their number
• Opted in to receive messages from you
• Are your existing customers

Don't Send Too Many Messages Too Fast

Even if you're using legitimate methods, sending 1,000 messages in 5 minutes looks suspicious to WhatsApp.

Their systems will flag your account for unusual activity and might restrict or ban you.

The Right Way: How to Send Bulk Messages on WhatsApp

Now let's talk about the proper, safe, legitimate ways to send multiple messages on WhatsApp.

Method 1: WhatsApp Broadcast Lists (For Small Groups)

This is WhatsApp's built-in feature for sending the same message to multiple people.

How WhatsApp Broadcast Works

A broadcast list lets you send one message to up to 256 people at once. Each person receives it as a private message from you. They don't see it went to others.

It's like BCC in email, but for WhatsApp.

How to Create a Broadcast List

On iPhone:

1. Open WhatsApp
2. Go to the Chats tab
3. Tap "Broadcast Lists" at the top
4. Tap "New List"
5. Select contacts (up to 256)
6. Tap "Create"

On Android:

1. Open WhatsApp
2. Tap the three dots (menu)
3. Select "New broadcast"
4. Choose contacts
5. Tap the checkmark

Once created, you can send messages to this list anytime.

The Big Limitation of Broadcast Lists

Here's the problem: people only receive your broadcast if they have your number saved in their contacts.

If someone doesn't have your number saved, they won't get your broadcast message. This makes broadcast lists impractical for reaching customers who might not have saved your number.

Also, you're limited to 256 contacts per list. If you need to reach more people, you'd need multiple lists.

When to Use Broadcast Lists

Broadcast lists work well for:

• Small customer base (under 250 people)
• People who definitely have your number saved
• Quick updates to regular customers
• Personal business contacts

For anything larger or more professional, you need the next method.

Method 2: WhatsApp Business API (For Serious Bulk Messaging)

This is the official, legitimate way to send WhatsApp messages in bulk to thousands of people.

What Is WhatsApp Business API?

WhatsApp Business API is the enterprise version of WhatsApp designed for medium to large businesses. It lets you:

• Send bulk messages to unlimited contacts
• Use message templates
• Automate responses
• Integrate with your CRM
• Have multiple team members managing conversations

This is what professional businesses use for bulk messaging.

How to Send 1000 Messages at Once in WhatsApp Using API

You can't access the API directly from WhatsApp. You need to work with a Business Solution Provider (BSP) like Wasupp.

Here's the process:

Step 1: Get API Access Sign up with a BSP who will:

• Verify your business
• Get you approved for WhatsApp Business API
• Provide the platform to manage your messaging

Step 2: Create Message Templates WhatsApp requires you to use pre-approved message templates for bulk messaging. These templates must follow their guidelines:

• Clear opt-out option
• Accurate business information
• No misleading content
• Valuable to recipients

You submit templates to WhatsApp for approval. Once approved, you can use them for bulk sending.

Step 3: Build Your Contact List Upload your customer phone numbers to the platform. Make sure these are people who opted in to receive messages from you.

Step 4: Schedule and Send Use the platform to:

• Select your approved template
• Choose which contacts to send to
• Personalize with variables (like name, order number, etc.)
• Schedule when to send
• Send to thousands at once

The platform handles the technical delivery while staying within WhatsApp's limits.

Benefits of Using WhatsApp Business API

• Send to unlimited contacts
• No risk of account ban (you're using official channels)
• Professional features like delivery reports
• Personalization at scale
• Integration with your business systems
• Automation capabilities for responses

The Catch: It's Not Free

Unlike the regular WhatsApp Business app, API access costs money. Most BSPs charge:

• Monthly platform fee (varies by provider)
• Per-message fee (depends on country and message type)

For Indian businesses, costs are generally affordable and worth it if you're regularly sending bulk messages.

Method 3: WhatsApp Business App Catalog (Indirect Bulk Reach)

The WhatsApp Business app has a catalog feature where you can showcase products. While this doesn't send bulk messages directly, it helps you reach multiple customers efficiently.

How to Use It

1. Set up your business catalog with products
2. Share catalog links with customers
3. When customers browse and inquire, respond with automated workflows

This is more of a pull strategy (customers come to you) rather than push (you message them).

How to Send WhatsApp Messages in Bulk Safely

Regardless of which method you use, follow these best practices:

Always Get Permission First

Only send bulk messages to people who:

• Gave you their number for business purposes
• Checked a box agreeing to receive updates
• Are existing customers who opted in

In many countries, sending unsolicited bulk messages is illegal. In India, it violates TRAI regulations and WhatsApp's policies.

Personalize Your Messages

Even bulk messages should feel personal. Use:

• Recipient's name
• Previous purchase details
• Location-specific information
• Relevant product recommendations

"Hi Priya, your order #1234 is out for delivery" feels way better than "Dear customer, your order is being delivered."

Provide Value, Not Just Sales Pitches

Every message should give the recipient something useful:

• Important updates they need
• Exclusive offers
• Helpful information
• Time-sensitive alerts

If every bulk message is just "BUY NOW SALE SALE SALE," people will block you.

Include an Easy Opt-Out

Always give people a clear way to stop receiving messages:

• "Reply STOP to unsubscribe"
• "You can opt out anytime by messaging us"

Respect opt-outs immediately. Continuing to message people who asked to stop is spam.

Don't Overdo the Frequency

Just because you can send bulk messages doesn't mean you should send them daily.

Most businesses find 1-2 bulk messages per week is the sweet spot. More than that and people start ignoring or blocking you.

Time Your Messages Appropriately

Don't send bulk messages at:

• Early morning (before 9 AM)
• Late night (after 9 PM)
• During typical work hours if targeting personal consumers

Mid-morning (10 AM - 12 PM) and early evening (5 PM - 7 PM) generally work best for engagement.

Monitor Delivery and Engagement

Track:

• How many messages were delivered
• How many were read
• How many people responded
• How many opted out

If you're seeing high opt-out rates or low engagement, something's wrong with your content or frequency.

Real Example: How a Clothing Store Sends Bulk Messages

Let me show you how this works in practice.

Threads & Co is a boutique in Delhi with 2,000 customers in their database.

Old Way (Manual):

• Employee copies message
• Pastes to each customer one by one
• Takes 6+ hours to reach everyone
• Many messages sent at random times
• No tracking of who received or read messages

New Way (Using WhatsApp Business API):

They created an approved message template: "Hi {{name}}, our Diwali collection just dropped! 30% off for the next 48 hours. Shop now: [link]. Reply STOP to unsubscribe."

Then they:

• Segmented their 2,000 customers (women's wear, men's wear, both)
• Scheduled the message to send at 11 AM
• Sent personalized messages to all 2,000 customers in minutes
• Tracked 1,400 opens, 230 clicks, and 45 sales directly from the campaign

Same effort. Way better results.

Common Mistakes When Sending Bulk WhatsApp Messages

Mistake 1: Buying Contact Lists

Never buy phone numbers from list brokers. These people didn't opt in to hear from you. It's spam, and it's illegal in most places.

Build your list organically from actual customers and interested prospects.

Mistake 2: Using the Same Message for Everyone

Sending identical messages to all 1,000 contacts misses the opportunity to personalize.

At minimum, use names. Better yet, segment by customer type, location, or purchase history.

Mistake 3: No Call-to-Action

You send a bulk message but don't tell people what to do next.

Always include a clear action: "Reply for pricing," "Click here to order," "Message us with questions."

Mistake 4: Ignoring Responses

You send 500 messages. 50 people reply. You don't respond to them for hours or days.

That's wasted opportunity. Have a system to handle responses quickly, either manually or with automation.

Mistake 5: Not Testing First

You send to 1,000 people and realize there's a typo, broken link, or wrong information.

Always send a test to yourself and a few team members first. Make sure everything works before hitting the full list.

How Much Does It Cost to Send Bulk WhatsApp Messages?

Let's talk money:

WhatsApp Business App (Free)

• Broadcast lists: Free
• Limitation: Only 256 contacts per list, only reaches people who saved your number

WhatsApp Business API (Paid)

• Platform fee: 2,000 - 15,000 rupees per month (varies by provider)
• Message costs: Approximately 0.10 - 1.50 rupees per message depending on type and volume
• One-time setup: Some providers charge setup fees

For example, sending 1,000 marketing messages might cost around 500-1,000 rupees plus your monthly platform fee.

Seems expensive? Compare it to:

• SMS costs (1-2 rupees per message = 1,000-2,000 rupees for same volume)
• Email marketing (low cost but 20% open rate vs WhatsApp's 70%+ open rate)
• Paid advertising (much higher cost per conversion)

WhatsApp bulk messaging usually delivers better ROI than alternatives.

The Bottom Line

Sending bulk messages on WhatsApp is powerful when done right and dangerous when done wrong.

For small-scale needs (under 200 people who have your number saved), use broadcast lists.

For professional bulk messaging at scale, you need WhatsApp Business API through an approved provider.

Never use unauthorized third-party apps, never spam random numbers, and always provide value to your recipients.

Do it right and bulk WhatsApp messaging becomes one of your most effective marketing and communication channels.

Ready to send bulk WhatsApp messages the right way without getting banned?