How to Send Bulk Messages on WhatsApp Without Getting Blocked

Your biggest offer is here.

You want to communicate this important announcement to your customers.

So you hit send on hundreds of WhatsApp messages and suddenly, your account is restricted. You are not alone; almost every business hits the same wall.

In this guide, we’ll show you how to send bulk messages on WhatsApp without getting blocked.

No shady hacks, no risky tools. Just smart and compliant methods that actually work.

What is Bulk Messaging on WhatsApp?

Bulk messaging on WhatsApp means sending the same message to a large group of users at once.

You use it to reach customers instantly with updates, offers, reminders, or important announcements.

The first builds trust. The second gets you blocked.

Why Does WhatsApp Block Accounts?

WhatsApp wants users to feel safe. If your account looks spammy, it will get flagged. 

Common reasons include:

• Sending unsolicited promotions
  
• Using unofficial tools or cracked APIs
  
• Too many people blocking or reporting you
  
• Sending 1,000+ identical messages in seconds

In short, the wrong approach equals a quick ban.

The Safe Ways to Send Bulk Messages

Not all bulk messaging methods work the same way.

Some are great for small businesses, while others are designed for brands that need to reach customers at scale.

To make sure your messages reach all of your customers, you need to pick the right option.

For example:

• A local bakery might use a broadcast list to send today’s specials to regulars.
  
• A small clothing store could use the WhatsApp Business app to update a few hundred shoppers about a weekend sale.
  
• A large e-commerce brand can use the WhatsApp Business API to confirm thousands of orders or send shipping updates in one click.

Let’s look at these three main ways to send bulk messages on WhatsApp and how they work.

1. Broadcast Lists

On the WhatsApp Business app, you can send one message to multiple contacts.

But the contacts must have your number saved, and you can only send to 256 people at a time.

2. WhatsApp Business App

Good for small businesses, but not designed for real scale. You will quickly hit limits.

3. WhatsApp Business API (Best Option)

The WhatsApp Business API is the official way to send bulk messages at scale while staying compliant. 

With tools like Wati, you can:

• Send campaigns to thousands of opted-in users
  
• Use WhatsApp-approved templates
  
• Track delivery, reads, and responses
  
• Stay compliant and avoid bans

WhatsApp isn’t just popular, it’s powerful. 

With over 2.9 billion users worldwide and a 98% open rate for messages, it’s the go-to platform for businesses that want visibility

Broadcast Lists vs WhatsApp Business App vs WhatsApp Business API

There are a few different ways to send bulk messages on WhatsApp.

Each option works differently and is meant for a specific business size and use case.

Here’s a quick comparison to help you understand which one fits your needs best.

In short:

• Broadcast Lists = quick, manual, and very limited.
  
• WhatsApp Business App = entry-level for small shops.
  
• WhatsApp Business API = the real deal for bulk messaging without getting blocked.
  

How to Send Bulk WhatsApp Messages with Wati

Once you’re set up on Wati, sending bulk WhatsApp messages is easy.

Follow the steps below to launch your first campaign.

Step 1: Sign Up and Connect Your WhatsApp Business API

• Get started with Wati in just a few clicks.
  
• Wati is an official WhatsApp Business Solution Provider (BSP), so your account stays safe and compliant.

Watch this video on how to set up your WhatsApp Business API account with Wati.

With the WhatsApp Business API, you can safely send bulk messages on WhatsApp to thousands of opt-in users. 

You can use approved templates and track results without worrying about getting blocked.

Step 2: Import Your Contact List

• Upload a CSV file with customer details.

• Wati automatically cleans and organises your list, so you avoid duplicate or invalid numbers.

Bonus Read: How to import contacts to Wati

Step 3: Create Your Message Template

• You can make your own template message or pick from Wati’s approved templates for things like alerts, offers, or updates.
  
• Add text, emojis, images, buttons, and even links.
  
• Want it to feel personal? Add placeholders like {name} and {date}.

Guide: How to create a WhatsApp template message?

Step 4: Schedule and Send

• Send instantly or schedule campaigns for later (perfect for time zones).
  
• Segment your list (new customers, repeat buyers, inactive users) to make your messages relevant.

Step 5: Track Performance in Real Time

• Monitor exactly how many people received, read, and replied to your campaign.
  
• Use analytics to improve future messages.
  
• Integrate with your support team so replies turn into conversations, not missed opportunities.

Here’s what one of our customers had to say about using Wati for WhatsApp broadcasts and automation.

Safe and Smart Ways to Send Bulk Messages on WhatsApp

Knowing how to send bulk messages on WhatsApp is only half the work. 

What really matters is sending them in a way that builds trust, keeps people interested, and makes sure your message actually reaches them in a single click.

Here are some best practices to follow.

1. Always Get Customer Opt-in

• Never message people out of the blue.
  
• Collect consent through your website, checkout pages, QR codes, or even in-store forms.
  
• WhatsApp values consent, and so do your customers.

Example: “Tick this box to get updates on WhatsApp.”

Here are 10 ways you can get WhatsApp opt-ins from your customers

2. Use WhatsApp-Approved Message Templates

• Templates go through Meta’s review system, which means they’re less likely to get blocked.
  
• Keep templates professional and useful (updates, alerts, reminders) rather than spammy.
  
• Save sales-heavy messages for when customers engage first.

3. Personalize Every Message

• A message feels special when it speaks directly to the person.
  
• Use variables like {first_name}, {order_id}, and {date} to make bulk campaigns feel like one-to-one chats.

Example: “Hi Priya, your appointment is confirmed for 3 PM tomorrow.”

4. Send at an Optimal Frequency

• Don’t blast 20,000 messages in one shot. Spread them over a few hours or days.
  
• Respect time zones. No 2 AM promotions!
  
• Stick to 2–3 bulk campaigns per week unless it’s urgent (like delivery updates).

5. Segment Your Audience

• Not everyone wants the same message.
  
• Break down your audience: new users, loyal customers, cart abandoners, inactive users.
  
• The more relevant your message, the less likely you’ll get reported.

6. Provide an Opt-Out Option

• Always give people the option to unsubscribe.
  
• A simple “Reply STOP to unsubscribe” keeps you compliant and builds trust.

• Customers who feel in control are less likely to block you.

WhatsApp blocks accounts that send spam, use unofficial tools, or ignore user consent. 

You can read more in the official WhatsApp Business Messaging Policy.

7. Balance Informational and Promotional Content

• Don’t just oversell. Balance promotions with helpful updates, reminders, or tips.
  
• Example: Combine a shipping update with a small cross-sell.

Instead of: “Buy now at 20% off”

Try: “Your package will arrive today. By the way, here’s 20% off accessories if you need them.”

By following these, you’re not only avoiding blocks but also building trust and long-term engagement.

One of our customers discovered that when they started sending bulk messages on WhatsApp with Wati, their campaigns reached 5x more audience than email.

Examples of Bulk WhatsApp Campaigns

From promotions to important updates, bulk WhatsApp campaigns can do a lot.

Here are a few examples of how businesses use them effectively.

1. E-commerce

Flash Sales: Send a campaign to your entire opted-in list with a time-limited discount.

 
Hi {name}, your weekend just got better. 

Get 20% off sitewide till midnight! 🛒 

Shop here: {link}Copy

Abandoned Cart Reminders: Automatically nudge shoppers who added items but didn’t buy.

 
Hey {name}, 

You left {product_name} in your cart.

Check out now and get free shipping!Copy

About 70 out of 100 online shopping carts are left without buying. 

That is why it is better to set up reminder messages on WhatsApp so customers can finish their purchase.

2. Healthcare

Appointment Reminders: Reduce no-shows with friendly nudges.

 
Hi {name}, 

Your appointment with Dr. Sharma is tomorrow at {time}. Reply YES to confirm.Copy

Health Tips: Share wellness advice or seasonal health alerts.

Template: Flu season is here! 

Stay safe with these quick tips.

{link}Copy

3. Education

Class Announcements: Notify parents or students about schedule changes.

 Reminder: Parent-Teacher Meeting for Grade 1 is on Saturday, 11 AM.Copy

Exam Alerts: Send timetable updates or study resources.

Your Math test is on Monday. Click here for practice worksheets 👉 {link}Copy

Common Mistakes to Avoid When Sending Bulk WhatsApp Messages

Even if you know how to send bulk messages on WhatsApp, doing it the wrong way can quickly get your account restricted.

Here are the biggest mistakes businesses make while sending WhatsApp messages to customers, and how to avoid them:

1. Cold-Messaging Random Numbers

Sending messages to people who never agreed to hear from you is the fastest way to get blocked.

2. Copy-Pasting the Same Pitch to Everyone

If all your messages look like generic spam, customers will hit “Report” without thinking twice.

3. Ignoring Customer Replies

WhatsApp is a two-way platform. 

If customers reply and you ignore them, they feel neglected.

4. Using Unverified Third-Party Tools

Grey-market bulk sender apps might promise “unlimited messages,” but they’re not official and put your number at risk.

5. Overloading Customers with Too Many Messages

Overcommunicating makes customers annoyed, and too many spam reports will tank your quality score.

6. Not Providing an Opt-Out Option

When people can’t easily unsubscribe, they’ll just block you. 

Too many blocks = restrictions.

7. Forgetting to Segment Your Audience

One-size-fits-all campaigns don’t work. 

Different people need different messages.

Avoiding these mistakes isn’t just about protecting your WhatsApp account. 

It’s about creating bulk campaigns that feel personal, respectful, and valuable to customers.

How to Send Bulk WhatsApp Messages That Customers Actually Want

Sending bulk WhatsApp messages is not just about promotions. It is about having real chats with customers at scale.

When you follow the rules and use the right tools, you can reach more people, build trust, and avoid getting blocked.

Ready to send your WhatsApp bulk messages without getting blocked? Try Wati today.

With the right approach, your messages will not only be sent, but they will also be welcomed.

FAQs on WhatsApp Bulk Messages