How to Send Your First WhatsApp Broadcast to 1,000 Contacts (2026)

To send your first WhatsApp broadcast to about 1,000 contacts, do not send it all at once. Fix the payment method in Meta first, send a test to yourself, put a quick-reply button on the template, and release the list in batches of 200 to 250 while you watch delivery and read rates. Widen the batches only after the first one looks healthy.

Last updated: November 8, 2026.

I do setup calls with new Whatsable users every week, and the first big broadcast is where people get nervous. It is a fresh number, a list of around a thousand people, and a vague fear of getting banned. The fear is reasonable. The fix is a short, boring routine. This is the one I use.

What should I check before my first WhatsApp broadcast?

Three things, in this order, because each one can silently block the next:

1. A working payment method on your WhatsApp Business Account in Meta. Meta charges per template message, and without a payment method that works it blocks template sends. See Meta's pricing documentation for how marketing and utility templates are charged.
2. An approved template. A broadcast to people who have not written to you in the last 24 hours can only be a template. New accounts can wait longer for approval, so submit it early.
3. A test to your own number. One real message, received on a real phone, proves the number, the template and the payment method together.

Why does Meta show a billing error when my card is on file?

This is the most common first-day blocker I see. The account looks connected, a card is listed in the business settings, and the platform still reports a billing problem or a zero balance. In the cases I have seen, the card itself was the cause. A card that sat in the business portfolio for a long time, or one whose bank wants a fresh authorization for this kind of charge, can fail even though it looks fine.

Here is how I isolate it:

1. Open the payment settings of the business portfolio that owns the WhatsApp account and read what Meta says about the account, not only what the card list says.
2. Add a second card, or remove the old card and add it again so the bank authorizes it from scratch.
3. Send one test message. If it goes through with the new card and failed with the old one, the old card was the problem.

A test succeeding is not proof the card can carry the whole campaign. A card with a small limit is fine for testing and wrong for a list of 1,000. Use the card the business really pays with for the real send.

How many contacts can I message on a new number?

There are two limits, and people mix them up. Meta caps how many different people a business can start conversations with in a rolling 24 hours. According to provider documentation such as 360dialog's messaging limits page, new accounts start at 250 unique contacts per 24 hours, and the cap rises in tiers (1,000, then 10,000, then 100,000, then unlimited) as the business is verified and the quality of its messages stays good. Check your own limit in WhatsApp Manager, because it changes with your account.

The second limit is the one you set yourself: how fast you release messages. Even when Meta would allow more, a new number that suddenly sends hundreds of messages to people who do not know it is how quality drops. Both limits point the same way. For a first send, think in batches of 200 to 250.

How do I send a first broadcast in batches with Whatsable?

1. Prepare the list. Upload a CSV with one column for the WhatsApp number and one for each variable your template uses. In the new broadcast screen you can open a sample CSV to copy the headers. If your headers differ, you can match columns by hand after the upload.
2. Pick the template. The broadcast uses an approved template. If you need to change the template, you duplicate it and wait for the new version to be approved.
3. Choose a delivery mode. Whatsable has three. Smart sends a probe batch first, then keeps delivering only while the live read rate stays at or above the target you set, and pauses if engagement drops. Regular sends a fixed number of messages per minute with no engagement check. Risk sends everything as fast as Meta allows, and I never use it on a new number. For a first send I use Smart with a batch of 200 to 250. If you prefer Regular, upload only that first slice of the list.
4. Watch the first batch. Look at delivered, read and replied. If most messages arrive and people respond, release the next slice. If delivery stalls, stop and read the error before sending more.
5. Repeat in slices until the list is done, keeping a day between the first slices if your Meta limit is still 250.

Delivery modes are explained in more detail in Bulk Messaging for Businesses: The 2026 Guide, and the risk of skipping pacing is covered in If You're Using a "Bulk WhatsApp" Tool, Your Number Is on a Timer.

Why should a broadcast template have a quick-reply button?

Because replies are what keep a broadcast healthy. When people ignore or block a stream of messages, WhatsApp sees low interest and can reduce the quality rating of your number, which later limits what you can send. A button that asks for a tap makes replying effortless.

The most common template I see in first broadcasts has a single link button, something like "book now". Replace that with a quick reply:

• A clear yes button, for example "Yes, send me the details".
• A second button for people who have a question, for example "I have a question".
• Keep each label within 25 characters, which is the template limit for a quick reply.

When someone taps a quick reply, it arrives in your inbox as a normal reply with that text, so you can answer it, route it, or let an AI agent handle it. It also means the link is only sent to people who said yes, instead of going to everyone in the first message.

How do I automate replies after the broadcast?

You have three options, from simplest to most flexible:

1. Answer by hand from the shared inbox. Fine for a few dozen replies.
2. Use an AI agent assigned to the number. Give it the facts it needs (what the offer is, the terms, the link to follow) and test it in the agent's test panel before it talks to customers. When someone taps "Yes, send me the details", the agent replies with the link.
3. Trigger a workflow in Make, Zapier or n8n when an incoming message matches your button text. See the integrations list.

If you use an AI agent, there is a setting called "Also follow up after a broadcast". It is off by default, because a broadcast to hundreds of contacts would otherwise start hundreds of follow-up sequences. Turn it on deliberately, after you have read how the follow-ups behave in the agent's test panel. Setup steps for agents are in the Whatsable docs.

What does a safe first-broadcast checklist look like?

If your messages are stuck with an error code instead, error 131049 and US customers who do not receive messages explains one of the usual causes.

Frequently asked questions

How many WhatsApp broadcast messages can I send per day on a new number?

New business accounts commonly start at 250 unique contacts per rolling 24 hours, and Meta raises the limit in tiers as the business is verified and message quality stays good. Check the current limit in WhatsApp Manager rather than assuming it.

Can I send a WhatsApp broadcast without a payment method?

No. Template messages are charged by Meta, and sends fail when the account has no working payment method. A card that is listed but rejected by its bank behaves the same way, so test with one real message.

Is it safe to send a broadcast to 1,000 contacts at once?

It is the riskiest way to do it. Sending in batches of 200 to 250 and checking delivery and replies between batches protects the quality rating of a new number. Whatsable's Smart mode automates this by pausing when engagement drops.

Why does my broadcast template need a reply button?

Replies show WhatsApp that people want your messages. A quick-reply button makes a reply one tap, which helps engagement and also lets you send the link only to people who answer yes.

Can an AI agent answer the replies to my broadcast?

Yes. Assign an AI agent to the number, give it the details of the offer, and test it before going live. Follow-ups after a broadcast are a separate setting that is off by default.

Which delivery mode should I use for a first broadcast?

I use Smart with a batch of 200 to 250, because it checks the live read rate before releasing more. Regular is fine if you upload only the first slice of the list yourself. I avoid Risk mode on a new number.

Next step: start a free trial of Whatsable, connect your number, and run your first test broadcast to yourself before you send to anyone else.