How to Send Bulk WhatsApp Messages to Thousands of Customers

Need to send one offer, reminder or update to thousands of customers on WhatsApp? Bulk WhatsApp marketing lets you do it in one click, with each customer’s name, a photo and a button, and a report showing who received and read it. This step-by-step guide covers campaign setup, customer consent, personalisation and delivery reports in simple steps.

3 ways to send bulk WhatsApp messages

Method	How it works	Best for
Bulk WhatsApp Panel (Cloud WhatsApp)	Upload contacts, write once, send to thousands in one click	Fast, low-cost promotions with no template approval wait
Official WhatsApp Business API	Verified business number with approved templates	Brand messaging, automation, order updates and OTPs
Forwarding or desktop tools on your own phone	Sends from your personal WhatsApp, one phone at a time	Not recommended: slow, and your number can get restricted

Cloud WhatsApp gives you both the Bulk WhatsApp Panel and the official API, so you can pick one or use both. See all Cloud WhatsApp services, or compare the options in our WhatsApp bulk sender vs manual messaging guide.

The Bulk WhatsApp Panel is a Cloud WhatsApp service, not a product of WhatsApp or Meta. For messages from a verified business profile, choose the official API.

Step 1: Get customer consent first

The most important step happens before you send anything. Customers who agreed to hear from you open, reply and buy; strangers block and report. Collect consent in simple ways:

• A WhatsApp checkbox on your website, checkout or enquiry form.
• A question at the billing counter: “Can we send you offers on WhatsApp?”
• A QR code or missed-call number in your store, on packaging and on flyers.
• Note when and where each customer agreed, and remove anyone who asks you to stop.

Steps 2–7: Set up and send your bulk WhatsApp campaign

1. Upload your contacts. Import an Excel or CSV file with numbers (with country code) and, if you have them, names and cities. Group them, for example “Recent buyers” or “Delhi customers”.
2. Write your message. On the Bulk WhatsApp Panel you can send right away; on the official API, choose an approved template or submit a new one.
3. Personalise it. Insert variables such as the customer’s name, city or order number (see below).
4. Add media and a button. Attach a product photo, video or PDF brochure, and add one clear button such as “Shop now”, “Call us” or “Book a slot”.
5. Send now or schedule. Late morning and early evening work well for most audiences; avoid late night.
6. Track and reply. Watch delivered and read numbers in your report and reply to every customer who responds.

How to personalise every message

A message that starts with the customer’s own name and city feels written for one person, even when it goes to thousands. You add placeholders once, and each customer’s details fill in automatically from your contact file:

{{1}} and {{2}} are variables that are replaced with each customer’s name, city, time or other details when the message is sent.

How to write bulk WhatsApp messages that get replies

• Lead with the benefit in the first line; that is what shows in the notification.
• Keep it short: 2–4 lines.
• One photo, one button, one action.
• Use the customer’s language. Hindi or a regional language often gets more replies.
• Be honest with deadlines: “Offer ends Sunday” only if it really does.

Need inspiration? Here are 10 WhatsApp marketing ideas that turn conversations into sales.

How to read your delivery reports

Cloud WhatsApp shows the status of every message, and you can download the full report in Excel:

Metric	What it tells you	How to improve it
Delivered	Messages that reached the customer’s phone	Clean your list and fix number formats
Read	Customers who opened your message	Stronger first line, better timing
Replied / clicked	Customers who took action	One clear button, a better offer
Failed	Messages that could not be delivered	Remove invalid or inactive numbers

Compare two versions of a message on small groups first, then send the winner to everyone. Ask for plans and pricing for your volume.

Keep delivery and replies high

• Only message opted-in customers. Never buy contact lists.
• Segment your list so each group gets offers that matter to them.
• Control frequency: one or two promotions a week.
• Make opting out easy: add “Reply STOP to unsubscribe” and honour it.
• On the official API, your daily limit grows as customers engage, so start with your most active customers.
• Reply fast. Quick replies turn a broadcast into a sale.

New to campaigns? Start with our complete guide to bulk WhatsApp marketing. Sending in India? See how to send bulk WhatsApp messages in India.

Frequently asked questions