How do I send 100 messages at once on WhatsApp?
Send 100 WhatsApp messages at once with a Business App broadcast list (256 max) or Cloud API. Formal copy, opt-in rules, and when to switch to Ominiflow. Use a WhatsApp Business broadcast list (up to 256 contacts) or one Cloud API campaign to an opted-in segment. Do not use a customer group or unofficial blaster apps.
Last updated: 26 October 2026
You can send 100 WhatsApp messages at once from the WhatsApp Business app using a broadcast list, or from Cloud API as one campaign. A personal WhatsApp chat cannot blast 100 people in one tap without a group — and a group shows every number to everyone. For a shop, clinic, or D2C brand, the Business app is enough at 100. Past 256 contacts, or if more than one person needs to send, use the official API.
Larger volumes: how to send 500–100,000 messages · bulk messaging without a ban.
Which tool for 100 messages
| Method | Works for 100? | Catch |
|---|---|---|
| Personal WhatsApp, one by one | Yes, slowly | No “send once.” Easy to look like spam if you copy-paste cold. |
| WhatsApp group | Yes | Everyone sees everyone. Wrong for customers. |
| Business app broadcast list | Yes | Max 256 contacts. Recipients must have your number saved, or many will not get it. |
| Cloud API (Ominiflow) | Yes | Needs opt-in + an approved template if you start the chat. Team inbox and delivery reports included. |
| Unofficial “blaster” APKs | Until the ban | The usual path to a restricted number. |
Send 100 at once in the Business app
- Open WhatsApp Business (not the personal app if you already switched).
- Tap the new-chat icon → New broadcast.
- Select up to 100 contacts (the cap is 256).
- Write one message. Keep it a formal WhatsApp message if this is work: who you are, why you are writing, one ask.
- Send. Each person receives it as a normal private chat. They do not see the other 99.
If someone has not saved your number, WhatsApp may hide the broadcast. That is why shops still lose half a list on the free app.
Send 100 at once on Cloud API
Use this when two people send, you need a catalog button, or you will grow past 256.
- Put the business number on Cloud API. Setup: how to get WhatsApp API.
- Store opt-in (checkout tick, form, or in-app signup).
- Submit a marketing or utility template. Wait for Meta approval.
- In Ominiflow: Campaigns → pick the template → pick the 100-contact segment → send or schedule.
- Watch block rate. Pause near 1%.
India marketing templates are about ₹0.86 each when delivered. A 100-person offer is roughly ₹86 in Meta fees plus the platform plan. Utility (order or appointment) is cheaper.
Formal copy that does not get you blocked
For 100 people you already know:
Hello {{name}}, this is Riya from {{shop}}. Your order {{id}} is packed. Reply 1 if you want it delivered tomorrow between 2–6 pm, or 2 to reschedule.
Do not buy a CSV and greet strangers. That is how 100 becomes a quality drop. More templates: formal WhatsApp messages · promotional messages.
FAQ
How do I send 100 messages at once on WhatsApp? expand_more
Use a WhatsApp Business broadcast list, or one Cloud API campaign to an opted-in segment. Do not use a customer group or an unofficial blaster.
Does a personal WhatsApp account support 100 at once? expand_more
Not as a proper broadcast. A group exposes numbers. One-by-one paste looks like spam. Switch to WhatsApp Business or Cloud API.
Is 100 messages enough to need the API? expand_more
Not if one person sends and the list is under 256. You need the API when the list grows, several people send, or you want Shopify/CRM triggers.
