Marketing5 min read·

How to Run a WhatsApp Broadcast Campaign in 10 Minutes

Learn how to build an opted-in customer list, create an approved WhatsApp message template, select the right audience, and launch your first broadcast campaign with NxAi.

Your Customers Are Already on WhatsApp

Imagine you have 5,000 customers. You want to tell them about a new product, a weekend sale, a special discount, a new collection, or an upcoming event.

Traditionally, you might send an email. But there is a problem: you don't just want customers to receive your message — you want them to actually see it and take action.

That's where WhatsApp broadcasting becomes powerful. Instead of individually messaging thousands of customers, you can create one campaign and send it to a relevant, opted-in audience at scale.

Customer List → Segment → Template → Campaign → WhatsApp → Analytics

Before You Start: What You Need

1. WhatsApp Business Platform

Official WhatsApp Business API setup rather than a personal WhatsApp account.

2. Opted-in Customer List

Customers who explicitly agreed to receive WhatsApp communications from you.

3. Customer Segments

Grouped lists based on purchase history, activity, location, and interest.

4. Approved Message Template

Meta-approved message templates for business-initiated conversations.

5. Campaign Platform (NxAi)

Central software layer for segmenting, launching, and analyzing campaigns.


The 10-Step Campaign Workflow

Steps 1 & 2

Build Segments & Verify Opt-Ins

Don't send everything to everyone. Divide 10,000 total customers into 2,000 recent buyers (product recommendations), 1,500 inactive buyers (re-engagement), and 500 VIPs (exclusive offers). Always obtain explicit consent via website forms, checkout, or QR codes.

Steps 3 & 4

Create Approved & Concise Templates

Spammy / Weak Message
"SALE!!! BUY NOW!!! 50% OFF!!!"
Clear & High-Converting
"Hi Priya 👋 Our new collection is live. Enjoy 15% off using code NEW15 this week."
Steps 5 to 9

CTA, Audience, Schedule & Launch

Add one clear Call-to-Action button (e.g. Shop Now, Book Appointment), choose your targeted audience segment (e.g. Men's Fashion Segment: 6,200 contacts), schedule optimal timing (Friday 6 PM), review variables, and click Launch Campaign in NxAi.

Step 10

Measure Funnel Analytics

10,000
Messages
9,500
Delivered
2,000
Clicked
350
Purchases
₹4.5L
Revenue

Broadcast vs Behavior Automation

Broadcast Campaigns

Sent to selected audience groups for product launches, weekend sales, seasonal events, and announcements.

Triggered Automations

Triggered automatically by customer behavior (Order placed → Delivery update → Review request 7 days later → Re-order 30 days later).


10-Minute Launch Checklist

Connect WhatsApp Business Platform
Import opted-in subscriber list
Select targeted customer segment
Verify approved Meta template
Add personalization variables {{1}}
Add 1 clear CTA button (Shop Now)
Review timing and audience numbers
Click Launch Campaign in NxAi
Track open & click-through rates
Measure conversion revenue ROI

How NxAi Makes Broadcasting Easy

With NxAi, businesses get a complete marketing suite for WhatsApp broadcasting, customer segmentation, automated drip sequences, AI chatbots, team inbox, and conversion analytics.


Before You Send: The List

The most common broadcast failure has nothing to do with the message. It is sending to people who never asked to hear from you, which produces blocks, reports, and a quality-rating drop that limits every campaign afterwards.

  • Every contact must have opted in. A general marketing or service opt-in collected on any channel now satisfies Meta's requirement, but it still has to be a real, recorded opt-in.
  • Never buy a list. The single most reliable way to lose a WhatsApp number.
  • Remove people who never engage. A smaller, responsive list outperforms a large, indifferent one — and protects your rating.
  • Honour opt-outs immediately. Continuing to message someone who asked you to stop generates exactly the signal that hurts you.

The opt-in and compliance guide covers what valid consent looks like in detail.


Getting the Template Approved

Every broadcast is a template, and every template needs Meta's approval before it can send. Submit early — a rejection the day before a campaign costs you the campaign.

Pick the right category

Promotional content is marketing, even if it mentions an order. Filing it as utility to get the cheaper rate is the most common rejection reason.

Give variables real values

Reviewers judge the rendered message. A template that is mostly placeholders gives them nothing to assess.

Proofread properly

Spelling and grammar errors read as spam signals and get templates rejected on their own.

Include an opt-out

Not mandatory everywhere, but it protects the quality rating that governs your sending limits.

Full detail, including the rejection reasons that catch most first submissions, is in the template approval guide.


Segment Before You Send

Broadcasting to your whole list is the default, and it is almost always wrong. Relevance is what keeps people from muting you.

  • By purchase history. Someone who bought last week needs a different message from someone who bought a year ago.
  • By engagement. Send first to people who reply. Positive early signal helps the campaign and your rating.
  • By location. Store-specific offers should go to people near that store, not nationwide.
  • By language. In India this matters more than most segmentation. A message in the customer's preferred language performs dramatically better.

What to Measure Afterwards

MetricWhat it tells you
Delivery rateWhether numbers are valid. Consistently low means list hygiene problems.
Read rateHigh on WhatsApp by default. A low read rate means the send time or the sender is wrong.
Reply rateThe real engagement signal. If nobody replies, the message gave them no reason to.
Click rateWhether the offer landed, for campaigns with a link.
Opt-out rateThe early-warning metric. A spike means the message or the targeting was wrong.
Quality ratingCheck it after every large campaign. A drift toward yellow caps future sends.

Worth remembering: messaging limits are shared across every number in your Meta Business Portfolio, so adding numbers does not increase how many people you can reach.

Frequently asked questions

How many people can I broadcast to on WhatsApp Business API?

There is no fixed cap on the API, unlike the WhatsApp Business app's 256-contact broadcast list. What limits you is your messaging tier, which Meta assigns based on your quality rating and history — starting at 1,000 unique contacts per 24 hours and scaling to 10,000, 100,000 and eventually unlimited as you demonstrate good sending practice. Tiers can be lowered again if your quality rating drops.

Why do WhatsApp broadcasts get low delivery or blocked?

Almost always quality rating. Meta tracks how many recipients block or report you, and a rating that falls to red restricts your sending tier or pauses your number entirely. The usual causes are messaging people who never opted in, sending too frequently, and using marketing templates for content recipients did not expect. Recovery takes sustained good behaviour, not an appeal.

What is the best time to send a WhatsApp broadcast?

Test rather than trusting a benchmark, but the practical constraint matters more than the optimum: WhatsApp messages arrive with a notification on a personal device, so an ill-timed send annoys people in a way an email does not. Avoid early mornings, late evenings and weekends unless your audience has told you otherwise, and respect the recipient's timezone rather than yours.

Do I need a template for every broadcast?

Yes. Any message you initiate outside an open 24-hour conversation window must use a template Meta has pre-approved. Only when a customer messages you first does a 24-hour service window open in which you can send free-form replies. Templates typically take minutes to hours to review, so submit them well before the campaign date.

How is a broadcast different from a group message?

A broadcast sends an individual, private message to each recipient — they cannot see each other and replies come only to you. A group puts everyone in a shared conversation where all members see each member's messages and replies. For campaigns you almost always want a broadcast; groups are for communities and are not available through the Business API.

Launch Your First WhatsApp Broadcast Today

Start a free trial with NxAi to test broadcast messaging, segment your contacts, and measure real conversion revenue.