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WhatsApp bulk message sender: The best tools to use (without getting blocked)

Campaigns
WhatsApp channels vs WhatsApp broadcast
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Are you looking for a WhatsApp bulk message sender? We show you the best tools you can use for sending personalized WhatsApp messages to a large number of recipients without getting your account blocked.

As WhatsApp is an incredibly successful marketing tool, and regularly delivers more leads, higher conversions, and longer customer lifetime value, it's only smart to look for ways to integrate WhatsApp bulk messages into your marketing strategy. 

There are, in fact, several tools that companies can use as a WhatsApp bulk message sender. Of course, picking the right one, isn't quite as easy. Some promise unlimited messages, others claim that they're completely free. And then some of these are unauthorized, risky solutions while others are absolutely trustworthy. 

So, how can you know what's what? In the following, we explain what you need to watch out for when picking a WhatsApp bulk message sender, and show you tools that won't get your account banned

What's a WhatsApp bulk message sender?

A WhatsApp bulk message sender is a tool you can use to send bulk broadcasts on WhatsApp.

WhatsApp bulk messages refer to sending a large number of one-to-many messages on WhatsApp. It's very similar to an e-mail newsletter, where you send one message that simultaneously reaches many users at the same time. 

It's, of course, something you can use to send out messages to friends, but it has also become a great marketing tool for businesses for sending important updates, special deals, promotional offers, information about new products, and much more. 

Compared to e-mail newsletters, WhatsApp bulk broadcasts deliver much better results. Their open rate typically reaches more than 90%, and click-through-rates around 35% are average. 

click-through rate comparison
Messaging apps like WhatsApp easily reach CTRs ten times higher than other channels. 

As WhatsApp bulk messages deliver such strong results, it's not surprising that you can find many WhatsApp bulk message solutions that offer WhatsApp broadcast capabilities specifically for businesses.  


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Things to watch out for when picking a WhatsApp bulk message tool

1. Only work with authorized WhatsApp Business Solution Providers

When trying to find a good WhatsApp bulk message sender, the first thing you should always check if you're dealing with an authorized solution from an official WhatsApp Business Solution Providers. 

WhatsApp Business Solution Providers are official WhatsApp and Meta partners that have been vetted and authorized by WhatsApp to offer special business solutions, such as WhatsApp bulk messaging tools. You can find an overview of these official providers in the Meta partner directory

Sinch Engage Business Solution Provider
Check Meta's partner directory for official WhatsApp Business Providers.

Any software provider that's not on the list is actually not authorized to offer WhatsApp Business solutions. This means that: 

  • there hasn't been an official integration to WhatsApp which could result in lacking features and technical problems
  • there's no official safety check or security patches, so you run the risk to get your account or data hacked or just running faulty software
  • your WhatsApp account can be banned, as WhatsApp doesn't allow unauthorized bulk automation tools 
  • you can't complain to WhatsApp if something goes wrong
  • there's no guarantee that what these unofficial WhatsApp bulk message senders promise is actually true

In addition, WhatsApp also clearly states in its terms that the company will take legal actions against unauthorized bulk messaging tools

WhatsApp will take legal action against those we determine are engaged in or assisting others in abuse that violates our Terms of Service, such as automated or bulk messaging. 

WhatsApp

2. Make sure that the bulk message solution is connected to the WhatsApp Business API

The WhatsApp Business API is WhatsApp's business platform that gives users access to all the business tools the messaging app offers. This includes chatbot and CRM integrations, access to message templates, automated bulk messaging, and much more. 

WhatsApp bulk senders that only work with the WhatsApp Business App won't be able to offer you the full marketing portfolio (unless it's an illegitimate solution). 

3. Check if you really get what you pay for

Even when working with official WhatsApp bulk message senders, you should always ensure that you get a good return on investment. 

Some paid solutions, for instance, only offer minor upgrades to the free bulk messaging possibilities on the WhatsApp Business App, but charge as much as more advanced solutions. 

4. Be careful about hidden costs

Some WhatsApp bulk senders seem to offer a good return on investment (a lot of features at low cost), but make sure that all these features are actually included in the price.

It's a common trick to attract interested businesses with a broad feature catalog, only to tell them later that they have to upgrade their package and pay more in order to get access to all these capabilities. 

Best WhatsApp bulk message senders that won't get you blocked

Broadcasts on the WhatsApp Business App

The WhatsApp Business App offers a free bulk messaging tool, the WhatsApp broadcast. With a business account, you can set up broadcast lists on the Business App, and send one-to-many messages to your contacts. 

This is a free and secure solution, BUT: 

  • you can't reach more than 256 recipients per broadcast list
  • you can only send messages to people that have your number saved in their contacts
  • there are no tracking and analytics tools
  • it's not 100% compliant with data regulations 
  • it's easy to get your account blocked if users report your messages as spam, if you send to many messages, or use unauthorized bulk message automations with it. 

In a few markets, WhatsApp has just released a paid version of the WhatsApp broadcasts, the WhatsApp marketing messages. You still can't send messages to users that don't have your number saved, and you can't send more messages either. But, you pay for the ability to personalize the first name of the recipient in your broadcasts and for automated list creations. 

Since the price per message is the same as on the API, at this point, it doesn't seem like a good return on investment, as you pay a steep price for limited benefits

WhatsApp Channels

In September 2023, WhatsApp launched the WhatsApp Channels globally. This tool allows you to send an unlimited number of messages to users that follow your channel. It's a free tool that companies can use on the WhatsApp Business App. 

However, these newsletter-type bulk messages don't end up in the users' personal inboxes. They appear in the "Updates" tab, so users have to be motivated to open this tab. The messages are also organized chronologically, so it's not easy for your messages to be seen immediately or even at all. 

In addition, aside from participating in polls or reacting with emojis, users don't have the possibility to interact with your message. There are also no targeting, personalization, or tracking tools.

Overall, the WhatsApp Channels are a decent newsletter tool for sending updates or general content. But, especially, if you're looking to send promotional messages, this is not the best tool. 

WhatsApp Business API

As mentioned, the WhatsApp Business API is WhatsApp's official business platform that gives companies and developers access to the full spectrum of WhatsApp business tools. 

This includes WhatsApp notifications, and, as part of that, marketing notifications. Marketing notifications are essentially the professional bulk messaging tool on the WhatsApp platform. With them, you can: 

  • use WhatsApp templates
  • integrate chatbots for automated responses
  • use sophisticated personalization
  • create target groups
  • schedule your messages
  • scale your marketing messages

If you're sending marketing notifications on the WhatsApp Business API, you start with a minimum of 1,000 bulk messages per day. However, depending on campaign quality, this can be scaled very quickly. 

The downside is that WhatsApp charges businesses per sent message, and that the API doesn't come with an interface, so you have to build your own IT environment around it, which requires additional resources.

Different WhatsApp marketing channels comparison
Comparing the three WhatsApp tools for WhatsApp bulk messaging. 

Sinch Engage Campaigns 

If you don't have the resources or time to set up your own API integration, there are plug-and-play solutions for WhatsApp bulk messaging. As mentioned before, you need to ensure that these solutions come from an official WhatsApp Business Solution Provider. 

Sinch Engage is one of these WhatsApp Business Solutions Providers that offers a ready-to-go WhatsApp bulk message tool. With this solution, you can: 

  • personalize your campaigns
  • send out messages to a large number of people without being blocked
  • use chatbots
  • use ChatGPT
  • get access to WhatsApp templates
  • integrate CRM systems
  • track and analyze your campaigns

With Sinch Engage, there's no need for an IT team or special developer skills. If you can use WhatsApp, you can use Sinch Engage. And the solution is ready to use right away. With the Campaigns tool on Sinch Engage, you can send out bulk messages on WhatsApp

Watch Campaigns explained on YouTube.

Launch your first campaign on WhatsApp and other messaging apps for free!

With Sinch Engage, you can scale your marketing campaigns on messaging apps easier and faster. 


Business requirements for sending WhatsApp bulk messages

In order to be able to send bulk messages through the WhatsApp Business API, you need to meet a few requirements. 

  1. Have an official WhatsApp Business account
  2. Set up your account with an official WhatsApp Business Solution Provider
  3. Collect opt-ins (active consent) from users before sending messages
  4. Share your data privacy practices with subscribers
  5. Create message templates and get them approved by WhatsApp (only takes a few minutes)
  6. Follow WhatsApp's policies for permitted content
  7. Mind allowed message limits 
  8. Respect opt-out requests

Limitations for WhatsApp bulk messages

There are also a few restrictions when it comes to promotional or marketing content that your business can send out on WhatsApp. WhatsApp Business prohibits any activities that promote the use, buying, selling, or exchanging of products and services, such as 

  • Firearms
  •  Alcohol and tobacco
  •  Drugs, whether prescription, recreational, or otherwise
  •  Medical and healthcare products
  •  Endangered species (wildlife and plants)
  •  Live non-endangered animals excluding livestock
  •  Hazardous goods and materials
  •  Real, virtual, or fake currency, including ICOs and binary options
  •  Body parts or fluids
  •  Business models, goods, items, or services that WhatsApp determines to be or are fraudulent, misleading, offensive, or deceptive, or may be or are exploitative, inappropriate, or exert undue pressure on targeted groups
  •  Real-money gambling
  •  Adult products and services
  •  Dating services
  •  Multi-level marketing
  •  Payday loans, paycheck advances, P2P lending, debt collection, and bail bonds

There might be exceptions to this depending on the exact marketing campaign. So check with your WhatsApp bulk message provider for details. 

Other restrictions for WhatsApp bulk messages are the distribution of misinformation, spam, sending too many messages in a short period of time, and sharing offensive content. 

Best practices for sending bulk messages on WhatsApp

Bulk messages on WhatsApp give you access to a powerful marketing tool and a very engaged audience, but it doesn't automatically translate to successful campaigns. These are some best practices to follow that will make your campaigns on WhatsApp more successful. 

Send valuable content

If users aren't interested in your content, your campaign won't be successful. Before sending out bulk messages on WhatsApp, you should therefore make sure that your content brings additional value to the users. 

Depending on your target audience, this could be a how-to guide, practical advice, or exclusive access to some of your products and services. 

Personalize your content

The most valuable content is getting the right content at the right time to the right user. This is why it's so important to build target groups around user history and habits, demographics, and personas. 

Also include personalization, such as the user's name, personal information (when appropriate, for instance if you send out birthday campaigns), or a product they've previously been interested in.

Titus WhatsApp conversational marketing EN handset

Bulk messages that seem like a personal note from a friend make for the most successful campaigns. That's why it's also important to not just send out bulk messages, but also to respond when users have questions about the content you sent. It'll create a closer relationship between users and your brand, more engagement, and better conversions.

Get the timing right

This might require a bit of trial and error, but the timing of your messages matters. The perfect timing highly depends on your target group. For reaching business users a mid-week message during lunchtime might be a good choice, while e-commerce shoppers probably have the most incentive to browse after work or on weekends. 

Include multimedia

Mobile messages that include rich media, such as videos, emojis, or images, achieve higher engagement rates and more conversions. With WhatsApp bulk messaging, it's very easy to include them, so we recommend making the most of it. 

Analyze your results

Make sure that your WhatsApp bulk message sender includes analytics tools to track your campaigns. That's what'll give you valuable insights into what works, what doesn't, and where you can optimize. 

Analytics Campaigns Sinch Engage
Some campaign insights that you get on Sinch Engage.

Summing up, WhatsApp messages can be a powerful addition to your marketing tool box — especially if you carefully choose your WhatsApp bulk message sender.  


Get your free consultation

Find out how Sinch Engage can benefit your business. Our local team in India will guide you through the platform and answer all your questions. 

Image of Marinela Potor, editor-in-chief at Sinch Engage.
Written by: Marinela Potor
editor-in-chief