WhatsApp broadcast lists vs a bulk sender
A WhatsApp broadcast list is built into the app and free, but it caps at 256 recipients per list and — the part that catches people out — only delivers to people who have saved your number in their contacts. A bulk sender has no recipient cap, does not require recipients to have saved you, personalises each message and reports what was delivered. Broadcast lists suit a small saved-contact audience; anything larger needs a sender.
The rule that catches everyone out
A WhatsApp broadcast list only delivers to recipients who have saved your number in their phone's contacts. If they have not, your message silently does not arrive. There is no error and no indication in the app.
This single rule is why broadcast lists disappoint most businesses. You add 200 customers, send, and it reaches the 30 who happened to save you. The other 170 never see it, and you have no way of knowing from the app.
There is no workaround. The requirement is enforced by WhatsApp, not by the interface. Asking every customer to save your number before a campaign is not realistic at any scale.
Side by side
| Broadcast list | Bulk sender (BuzzRelay) | |
|---|---|---|
| Recipients per send | 256 | No fixed cap; governed by your daily limits |
| Recipient must have saved you | Yes — otherwise not delivered | No |
| Personalisation | None — identical text to everyone | Per-recipient variables and spin text |
| Delivery reporting | Per-recipient ticks, checked manually | Per-recipient status, exportable |
| Scheduling | No | Yes |
| Send pacing | All at once | Randomised delays, daily caps, quiet hours |
| Multiple numbers | One at a time, by hand | Several devices, one campaign each |
| Import from Excel | No — contacts saved by hand | Yes |
| Cost | Free | One-time licence |
What a broadcast list is genuinely good at
It is not useless — it is just narrow. Broadcast lists work well when:
- Your audience is small, under 256, and they are people who already have you saved: existing clients, a class, a team, a society.
- The message is the same for everyone and needs no personalisation.
- You are sending occasionally rather than on a schedule.
- You want zero setup and zero cost.
For a tuition teacher messaging 40 parents who all have the number saved, a broadcast list is the right tool and a bulk sender is overkill.
Where it stops working
- Above 256 recipients you are splitting lists by hand and repeating the send.
- Prospects and new leads have not saved you, so they never receive it.
- No personalisation means identical text to everyone — which is also the pattern most likely to be reported.
- No reporting beyond opening the list and reading ticks one by one.
- No pacing — everything goes at once, which is exactly the burst pattern that draws attention.
What a sender does differently
BuzzRelay sends each message as an individual one-to-one message from your account, which is why the saved-contact rule does not apply. From there the differences follow:
- Personalisation per recipient using double-brace variables such as
{{name}}, plus spin text like{Hi|Hello}so no two messages are byte-identical — see Personalise messages with variables. - Pacing — randomised delays, per-device daily limits and quiet hours instead of one burst.
- Import from Excel rather than saving contacts by hand.
- Per-recipient reporting you can export.
- Multiple numbers — connect several devices and run one campaign per device to spread the volume, see Run multiple devices and spread volume.
Neither option changes the consent question. A bulk sender removes the saved-contact restriction; it does not give you permission to message people who never opted in. See Is bulk WhatsApp messaging legal?
What about WhatsApp groups?
Groups are sometimes suggested as a broadcast workaround. They are a poor substitute: everyone sees everyone else's number, anyone can reply to the whole group, and adding people to a group without asking is one of the most reliably reported behaviours on the platform. Groups are for conversation, not announcements.
Frequently asked questions
What is the WhatsApp broadcast list limit?
A broadcast list holds up to 256 recipients. The more significant limit is that messages only reach recipients who have saved your number in their contacts — anyone who has not saved you never receives it, with no error shown.
Why did my broadcast message not reach everyone?
Because WhatsApp only delivers broadcast messages to recipients who have your number saved in their phone contacts. There is no notification when a recipient is skipped, so the send appears to succeed while most of the list never sees it.
Is a bulk sender better than a broadcast list?
For an audience above 256, for prospects who have not saved your number, or where you need personalisation, scheduling and delivery reports, yes. For a small audience of existing contacts who already have you saved, a broadcast list is free and sufficient.
Can I use a WhatsApp group to broadcast instead?
It works poorly. Every member can see the others' numbers and reply to everyone, and adding people to a group without their permission is one of the most commonly reported behaviours on WhatsApp. Groups are for conversation, not announcements.
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