Sending 1,000 WhatsApp messages at once can be a game-changer for marketing, sales, and customer support teams—but only if it’s done the right way. If you try to send mass messages from a personal WhatsApp account or use unsafe tools, you risk getting blocked or banned.
In this guide, you’ll learn exactly how to send high-volume WhatsApp messages safely, compliantly, and without getting your number banned—using the official WhatsApp Business API and AiSensy.
Why You Shouldn’t Send Bulk Messages Using Regular WhatsApp
Many businesses make the mistake of using:
- Modified WhatsApp apps
- Browser extensions
- Unofficial automation tools
These methods violate WhatsApp’s policies and can quickly lead to:
- Temporary blocks
- Permanent number bans
- Loss of customer trust
If you want to send 1,000 messages safely, the only recommended method is through the official WhatsApp Business API.
The Safe Way: WhatsApp Business API
The WhatsApp Business API is designed specifically for businesses that want to send messages at scale.
With the API, you can:
- Send messages to thousands of users
- Use pre-approved message templates
- Personalize content using dynamic variables
- Track delivery, read, and failure rates
This is where AiSensy comes in.
How AiSensy Helps You Send 1,000 WhatsApp Messages at Once
AiSensy is an official WhatsApp Business Solution Provider (BSP) that lets you send large-volume campaigns without technical complexity.
With AiSensy, you can:
- Upload your contact list
- Create and get message templates approved
- Schedule and automate campaigns
- Track real-time analytics
You don’t need to code or set up complicated infrastructure.
Step-by-Step: How to Send 1,000 WhatsApp Messages Safely
It's really easy to get started with bulk WhatsApp broadcasting using AiSensy. Follow these steps to send your first 1000 WhatsApp messages at once:
1. Create an AiSensy Account
Go to app.aisensy.com/signup and fill in the below details to get started.
2. Set Up WhatsApp Business API
Once you create your AiSensy account, you will gain access to the Forever free plan where you can apply for WhatsApp Business API and run Click to WhatsApp ads.
3. Verify your KYC
Once your WhatsApp API goes live, you unlock a broadcasting limit of 250 unique users per day.
To increase this limit to 2000 unique users per day you need to get your KYC done.
However, don't worry. To increase this limit further, just send messages to half of your current broadcast limit in a 7 day-period.
That means if your broadcast limit is 2000 users per day, just send messages to 1000 unique users and your broadcast limit will increase to 10,000 unique users per day.
4. Start your FREE Trial or purchase a plan
There are limited features available in the FREE forever plan. If you wish to send a WhatsApp broadcast, you can either start your 14-day FREE trial or you can purchase a paid plan!
5. Create a WhatsApp Template message
Once all the above steps are followed, now you need to create a WhatsApp template message, the message that you will be sending to your users on WhatsApp.
You can create multiple types of messages such as text, image, video, copiable coupon code and carousel card messages.
There's a particular process to creating a template message that you can read here:
Read: How to create WhatsApp Template message in AiSensy
6. Upload Contacts in .csv format
After creating the template message, you need to upload your contacts.
You first need to add the contacts to a Google Sheet and download it in .csv format.
7. Recharge WhatsApp Conversation Credits
WhatsApp charges separately for conversations you send on WhatsApp. Depending on the type of conversation, you will be charged differently.
Let's say you want to send marketing messages to your audience of 1000 users. This will cost you Rs 0.88 per message delivered.
8. Filter and select contacts you wish to send a broadcast
Once you have imported your contacts, you can filter them by selecting who you want to send a WhatsApp Broadcast.
Click the Filter button to filter the contacts you wish to Broadcast.
9. Fill in your campaign details and select the approved template message
Here, add your Campaign name (Campaign name should be unique for every campaign) & select your pre-approved template message.
Read: How to send bulk WhatsApp messages in AiSensy
Enter campaign details and select pre-approved template message
10. Send your bulk WhatsApp broadcast
11. Tap Campaign Analytics to monitor insights
And well, that's it! You've just sent your very first bulk WhatsApp broadcast officially using AiSensy.
On average, businesses using AiSensy drive 25-60% of their revenue via Broadcasting and many more features.
AiSensy features - Your Official WhatsApp bulk message sender
With AiSensy, sending bulk WhatsApp messages is just the beginning. You can also:
- Apply for Verified Blue tick for free: Get your business recognized by applying for free WhatsApp blue tick.
- Automate notifications via Integrations: Connect your CRM & software and automate useful notifications on WhatsApp such as order confirmation, delivery updates, webinar confirmation and much more.
- Build no-code Chatbots: Automate support queries, sales and lead qualification with no-code drag and drop chatbots that you can build in 10 minutes.
- Showcase catalogs and collect payments within WhatsApp: Connect your facebook catalogs with AiSensy and allow users to pay directly within WhatsApp via native WhatsApp payments.
- Multi-agent live chat: Add unlimited team members and resolve customer queries in real-time with multi-agent live chat.
- Advanced retargeting: Retarget users based on who read, replied and clicked the CTA button in your template messages.
- Run ads that Click to WhatsApp: Acquire 5x leads by running ads that click to WhatsApp powered by AiSensy. Engage leads by connecting chatbot, qualifying users & so much more!
Final Thoughts
Sending 1,000 WhatsApp messages at once is not only possible—it’s safe and scalable when you use the right platform and follow best practices.
By using the official WhatsApp Business API with AiSensy, you can reach thousands of customers without risking blocks, bans, or brand damage.
If you want to start sending 1,000 WhatsApp messages safely, AiSensy makes it simple. Create a free account today!
FAQs
Yes, it is legal and safe if you follow WhatsApp’s official rules. Businesses must use the official WhatsApp Business API, send messages only to users who have clearly opted in, use approved message templates, and avoid any spammy or misleading content. When these best practices are followed, sending 1,000 WhatsApp messages at once becomes a safe, compliant, and scalable strategy for business communication.
Unfortunately, no. If you want to connect with customers at scale using the official WhatsApp Business API, you need to pay for conversation credits as well as platform charges to access the WhatsApp API.
Your number will not get blocked if you use the official WhatsApp Business API, send messages only to opted-in users, and follow WhatsApp’s messaging policies. Using unofficial tools, buying lists, or sending spammy content significantly increases the risk of being blocked.
The safest way is to use the official WhatsApp Business API through an authorized provider like AiSensy. This ensures compliance, template approvals, rate limits handling, and proper message delivery while reducing the risk of blocks.
Yes, explicit user opt-in is mandatory. WhatsApp requires businesses to send messages only to users who have clearly agreed to receive communications, whether via website forms, checkbox consent, or in-app permissions.
The time it takes depends on WhatsApp’s throughput limits, your account quality rating, and your sending infrastructure. With the WhatsApp Business API and a trusted BSP, most bulk campaigns are delivered within minutes, though delivery can vary based on traffic and template approval status.