How to send a WhatsApp broadcast in India without getting your number banned
Most broadcasts don't fail because the offer was weak. They fail because they were sent to the wrong list, in the wrong tone, too often. Here's the difference between a broadcast that books calls and one that gets you reported.
Amit exports textiles out of Surat. Last quarter he bought a list of 5,000 buyer contacts, loaded them into WhatsApp, and sent everyone the same "great offers this season" message. Within an hour he had 47 spam reports and a 72-hour restriction on his number. The list cost him money. The ban cost him three days of every conversation he was actually in the middle of.
Nothing about that message was illegal or even badly written. It failed for one reason: none of those 5,000 people had asked to hear from him. That's the whole game with broadcasts in India. Get the list right and the rest is easy. Get it wrong and the best copy in the world still gets you flagged.
Rule one, and it's the only one that can ban you: broadcast to people who reached out first
Every other mistake on this page costs you replies. This one costs you your number. Meta's quality rating drops the moment people start reporting you, and a few dozen reports is all it takes. So the line is simple — only broadcast to people who have actually interacted with your business:
- Enquired through IndiaMart, JustDial or a similar marketplace
- Filled a form on your website or a Facebook lead ad
- Messaged your WhatsApp number first
- Gave a clear yes to being contacted (a checkbox, a 'yes send me details' reply)
A purchased list, a scraped list, numbers from a WhatsApp group you joined — none of them count, no matter how relevant they look. In India, "opted in" almost always means "they contacted me, not the other way around." If you can't point to the moment a contact reached out, leave them off the broadcast.
Write like a person who knows them, not a notice board
The official API needs pre-approved templates, and people assume that means stiff, form-letter language. It doesn't. A template can still use the contact's name and reference exactly what they asked about — and that one detail is the whole difference between a reply and a mute.
"Dear Customer, we have great offers this season. Call us to know more."
"Hi Rajesh, thanks for your enquiry about our 2BHK in Wakad. 3 units left at ₹68L — want me to send the floor plan and current pricing here?"
Same recipient, same product, wildly different reply rates. Use their name, name the thing they asked about, and end with one next step — not three questions stacked in one message.
One list for everyone is the same as no list
A coaching institute with JEE aspirants, NEET aspirants and working professionals chasing an MBA can't send all three the same message — it's wrong for two-thirds of the list, and people can tell when a message wasn't meant for them. The fix isn't more messages, it's the right cut: split by what the contact actually wants. Lead source, product interest, city, status — pick the one that changes what you'd say, and send that group its own message. An IndiaMart buyer in Surat and a Facebook lead in Pune should almost never get the same words.
Time it for when they're free, and don't show up every other day
WhatsApp gets checked all day in India, but that's not the same as every hour being right for a business message. Two simple defaults:
- B2B(buyers, distributors): Tue–Thu, 10–11 am or 3–5 pm. Skip Friday evenings.
- B2C(real estate, insurance, education): 7–9 pm on weekdays, once people are off work and on their phone.
Frequency matters more than timing, though. One broadcast per contact per week is the ceiling. The insurance agent who blasts his full list Monday-Wednesday-Friday isn't being persistent — by week three half his contacts have muted him, and muted contacts never convert. If you genuinely have something to say every few days, that's not a broadcast job. That's a drip sequence that stops the moment someone replies.
Broadcast or sequence? Don't use one for the other's job
A broadcast is one message to a list, sent once. A sequence is a multi-day flow that keeps going until the contact replies. Most "my broadcasts annoy people" problems are really "I used a broadcast where I needed a sequence."
Use a broadcast for
- A product or service launch
- A time-limited offer
- Re-engaging cold leads — once
- Event or webinar invite
- Festival / seasonal promo
Use a sequence for
- New leads from IndiaMart or Facebook
- Leads quiet for 3–7 days
- Long cycles — real estate, solar, insurance
- Admission follow-up over 2–3 weeks
- Renewal reminders over 30+ days
The broadcast isn't the win — the reply is
Indian deals rarely close over text alone. The pattern that works is WhatsApp to open the door, a call to walk through it. So the broadcast is step one of two: send it, then call everyone who opened or replied within a couple of hours, while you're still fresh in their mind. "I saw you looked at my message about the Whitefield project — did you get a chance to check the floor plan?" lands very differently from a cold dial. The one thing that kills this is a reply sitting unseen in one salesperson's personal WhatsApp for a day. Whatever else you do, make sure broadcast replies reach whoever can actually answer them, fast.
Where the tool actually helps
Everything above is true whether or not you use 3Sigma. But the parts that are tedious to do by hand — segmenting, scheduling, catching replies — are what a CRM is for:
- Send on the official API — broadcast opted-in contacts at scale even if they haven't saved your number, with pre-approved templates and rate-aware delivery so you stay on the right side of Meta.
- Filter, then send — cut your list by source, status, city or product in a click and send each segment its own message.
- Schedule the send — pick the exact day and time instead of remembering to hit send at 7 pm.
- Catch every reply — broadcast replies land in a shared team inbox with the full lead history, so nothing rots in one person's phone — and an automation can create a call task the moment someone responds.
More on the campaign side in WhatsApp campaigns, and on routing replies in call management.
Free WhatsApp Business app vs the official API, for broadcasts
| Feature | WA Business App | API (3Sigma) |
|---|---|---|
| Send without contact saving you | ||
| Broadcast size limit | 256 contacts | No hard limit |
| Schedule in advance | ||
| Segment by field / source | ||
| Track delivery & read receipts | Limited | |
| Shared team inbox for replies | ||
| Multi-day drip sequence |
Meta charges per conversation on the API. See WhatsApp CRM pricing for India for how that works in practice.
Questions people ask before their first broadcast
What is a WhatsApp broadcast?
A WhatsApp broadcast is a one-to-many message sent from your WhatsApp Business number to multiple contacts at once. Unlike a group, each recipient sees the message privately — as if you messaged them individually. On the official WhatsApp Business API, broadcasts use pre-approved templates so your messages are delivered reliably.
How is a WhatsApp broadcast different from a WhatsApp group message?
In a broadcast, each recipient sees the message in a personal chat — they don't know who else received it, and replies come back to you privately. In a group, all members see each other and can reply in the same thread. For sales and follow-up, broadcasts are better: they feel personal and protect customer privacy.
Can my WhatsApp number get blocked if I send too many broadcasts?
Yes — if you send broadcasts to people who haven't opted in, or if too many people mark your messages as spam, Meta can restrict or block your number. The safest approach is the official WhatsApp Business API with pre-approved templates, which is what 3Sigma uses. The rate-limit-aware delivery also reduces the risk of being flagged.
Do recipients need to have saved my number to receive a broadcast?
On WhatsApp Business App (the free app), yes — contacts must have your number saved to receive a broadcast. On the official WhatsApp Business API (which 3Sigma uses), this restriction is removed — you can reach any opted-in contact who has interacted with your business, even if they haven't saved your number.
How do I segment my broadcast list for better responses in India?
The most useful segments for Indian businesses are: lead source (IndiaMart buyers behave differently from Facebook ad leads), status (new enquiries vs warm leads vs cold leads), product interest, and city or region. In 3Sigma, you can filter leads by any of these fields and send a targeted broadcast to that list — so an IndiaMart buyer in Surat gets a different message than a Facebook lead from Pune.
What's a good WhatsApp template for a follow-up message in India?
A good follow-up template: uses the contact's name, mentions what they enquired about, gives one clear next step (a call, a link, or a simple reply), and stays under 100 words. Avoid asking multiple questions in one message. Indian buyers respond better to specific messages — 'I saw your inquiry about solar panels for a 3 kW rooftop' gets more replies than 'Dear Customer, we have great offers on solar.'
Keep reading
Send broadcasts that get replies — not spam reports
3Sigma runs WhatsApp broadcasts on the official API with segmented lists, scheduling and a shared team inbox so every reply gets picked up — plus a SIM dialer to call everyone who doesn't reply.