WhatsApp broadcast lists: what they are, how many contacts they accept and how to use them without getting blocked

If you have a business and you use WhatsApp to sell, at some point you've run into the same situation: you want to let 200 customers know there's a promo, that you opened a new location, or that tomorrow is a holiday, and you don't feel like putting together a group of 200 people where everyone replies to each other. Broadcast lists exist for exactly that. They're WhatsApp's oldest and most underrated feature, and also the one that gets misused the most. In this article you'll see what they are exactly, what the real contact limit is, how they differ from a group and from a WhatsApp API campaign, and what warning signs tell you you're about to get blocked.

What a broadcast list is (and what it isn't)

A broadcast list is a saved list of contacts that you send a message to, and each person receives it as if you had written only to them. It's not a group: the contact doesn't see who else is on the list, doesn't see the others' replies, and can't write to the rest. On the other side, the conversation looks one-on-one, in the normal chat. That's what makes it so useful for a business: the customer feels you're talking to them, not that you dropped them into a chain.

The other side of the coin is that only contacts who have you saved receive the message. If someone didn't save your number, nothing arrives, and you don't find out either. There's no delivery confirmation for that person: they simply don't show up. That's why, when you ask "why did my broadcast list reach some people and not others?", the answer is almost always the same: those contacts didn't have your number saved.

The 256-contact limit and why it exists

WhatsApp allows up to 256 contacts per broadcast list. It's a hard cap: if you try to add the 257th, the app won't let you. The reason is anti-spam: with a low limit, sending a message to many people requires putting together several lists, and that makes mass sending more laborious and therefore less attractive to anyone who wants to spam.

You can create as many lists as you want. If you have 1,000 customers, you'll need four lists of 250, or five of 200. The problem is that each list is sent separately: in the normal WhatsApp app, with the phone in your hand, sending the same message to four lists is manual and repetitive work. That's where the model starts to become too small for a business that's growing.

Differences between a group and a WhatsApp Business campaign

It's worth putting all three options in the same table, because they get confused all the time.

• Group: up to 1,024 participants. Everyone sees everyone's messages. It works for a community, a course or an internal team, not for one-to-one communications with customers.
• Broadcast list (regular app): up to 256 contacts per list. Each person receives the message in their individual chat. It only reaches those who have you saved in their contacts. It's sent from the phone.
• Campaign via official WhatsApp API: no 256 limit, but it requires a template approved by Meta, the contact's opt-in, and it's charged per conversation depending on the country. It's sent from a platform, not from the phone.

The broadcast list is free and works to get started. The API campaign is what scales and lets you measure. The typical mistake is trying to run a campaign with phone broadcast lists: you reach 200 people, you don't know how many received it, you can't measure anything, and you end up copying and pasting the same text five times.

How to create a broadcast list step by step

1. 1Open WhatsApp and go to the Chats tab (on Android) or Settings (on iPhone).
2. 2Look for the "Broadcast list" or "New broadcast" option depending on your version.
3. 3Tap the add contact icon and choose the people you want to include. You can add them one by one or from your saved contacts.
4. 4Give the list a name (for example "Downtown customers" or "Friday promos").
5. 5Write the message as if it were a normal chat and send it. Each recipient receives it in their individual conversation.
6. 6To edit it later, go into the list, tap its name and add or remove contacts.

A detail that surprises many: if a contact replies to you, the reply doesn't go to the list, it goes to your individual chat with that person. The list is not a two-way channel, it's just a way to group recipients for sending.

When a broadcast list works for you and when it doesn't

The broadcast list shines when you have few contacts and a direct relationship with them. A corner store that wants to announce that the sweet bread has arrived, a hair salon that announces it has an open slot at 15:00, an academy that reminds you that the course starts tomorrow. These are messages with context, to people who know you, and the volume is low.

It stops being convenient when the volume grows. If you have 800 customers and you want to announce a promo, you'll have to set up four lists, send four times and you won't know how many people received it. That's when it's worth switching to a tool with the official WhatsApp API, where sending is a single step, you have approved templates and you see delivery and response statistics. In Wando, for example, campaigns are sent through Meta's official API and are recorded in the inbox statistics, something the phone's broadcast list doesn't give you.

The real risks: blocks, reports and the myth of "you get banned for broadcasting"

There's a belief that using broadcast lists gets your account banned automatically. It's not quite like that, but the risk exists and it's not magic: WhatsApp measures how many of your recipients block you or report you as spam. If you send a message to 200 people who don't know you and 40 block you, your number enters a dangerous zone. If you send to 200 customers who buy from you every week and none block you, nothing happens.

The signs that you're in a risk zone are quite clear: many contacts who never reply to you, messages you send without anyone having written to you first, lists built with numbers you got from somewhere without permission, and WhatsApp notices about unusual activity. When two or more of those signs appear together, it's worth stopping and reviewing your strategy before continuing to send.

Best practices so the list works (and doesn't work against you)

• The contact must have you saved. Without that, the message doesn't arrive. Ask the customer to save your number when they buy, or send them the contact yourself with a message inviting them to save it.
• Ask permission before adding someone. A customer who told you "let me know when it arrives" is a valid recipient; a number you bought is not.
• Segment. One list for frequent customers and another for new inquiries lets you send different messages and lower blocks.
• Write like a person, not like a flyer. A short message, with a name if you can, and a single idea. Messages with ten emojis and all caps get reported more.
• Don't send every day. A list that receives one message per week gets read; one that receives three per day gets muted.
• Always offer a way out. A "if you don't want to receive more notices, let me know" drastically lowers reports.

Broadcast lists vs. API campaigns: when to make the jump

The jump makes sense when any of these three things is true: you have more than 256 active contacts, you need to know how many people received the message, or you want to send the same communication to everyone without sending it four times. It also makes sense when you want to use Meta-approved templates, which let you write to someone who hasn't written to you in the last 24 hours (with prior opt-in, of course).

WhatsApp Business templates (HSMs) are approved by Meta and the timeframe it handles is up to 48 hours. There is no way to speed it up or guarantee it goes out sooner. If you're going to run a campaign for a specific date, it's best to have the template approved days in advance, not the night before.

About costs: Meta charges per conversation and the price varies by country and message category. There is no single number that applies to everyone, so it's best to check Meta's official documentation for your country before budgeting a campaign. What is true is that phone broadcast lists have no cost, and API campaigns do.

How they combine with a WhatsApp inbox with AI

Sending the message is one thing, and handling the replies is another. When a campaign works, people reply: price inquiries, orders, people who want to unsubscribe. If those replies land on one person's phone, they get lost. That's why many SMBs end up using a shared inbox where the team sees all conversations and divides up the chats.

That's where AI starts to make sense, but with an important nuance: good AI doesn't reply on its own. In Wando, for example, the AI suggests a reply and someone on the team approves it with one click before sending it. And the system learns from the real replies the business gives, not from a generic manual, so over time it suggests responses that sound more and more like how you would reply. That's different from a flow-based chatbot, which has to be programmed and maintained every time something changes. If you want to see how it works with your own WhatsApp, the trial is 14 days and doesn't ask for a card.

Common mistakes worth avoiding

• Sending the first message to someone who has never written to you and doesn't have you saved as a contact. It doesn't reach them, and if it reaches them through another channel, they report you.
• Putting together a list of purchased contacts. It's the fastest route to being blocked.
• Using the list as a group: asking "does anyone want to buy?" and expecting everyone to see the replies. They don't see them, each person is in their own chat.
• Sending the same message to all four lists without changing anything. If they report you once, they report you on all of them.
• Not measuring anything. If you don't know how many people reply to you, you don't know if the list is useful.
• Confusing a broadcast list with a campaign. The list belongs to the phone, the campaign belongs to the API. They have different rules, limits and costs.

In summary

Broadcast lists are a simple, free tool that works perfectly for a small business with customers who know it. The limit is 256 contacts per list, it only reaches people who have you saved as a contact, and it doesn't give you metrics. When volume grows or you need to know what happens with each message, the natural path is to move to campaigns through the official WhatsApp API, with approved templates and an inbox where the team handles the replies. The two coexist: the list for day-to-day announcements, the campaign for planned communication.