Three ways to message customers on WhatsApp
Not every method is allowed, and the wrong one can get your number blocked. Here are the legitimate routes.
The options at a glance
| Method | Best for | Scale | Risk |
|---|---|---|---|
| Broadcast list in the WhatsApp Business app | Small shops and a few hundred contacts | Limited to a small list who saved your number | Low with clean opt-in |
| WhatsApp Business Platform (API) through an approved provider | Larger lists, automation and reporting | Grows with your quality rating | Very low when rules are followed |
| Click-to-WhatsApp ads | Starting new conversations | Depends on ad budget | Low |
Broadcast list or the Business Platform?
WhatsApp provides two legitimate routes for commercial messaging. The right choice depends on your contact volume, staff size, and automation needs.
Broadcast list in the Business app
When to choose a broadcast list
- Neighborhood shops, boutique consultants, and small retail businesses with a few hundred regular customers
- Direct personal communication without recurring software platform subscriptions or API fees
- Relationship-driven outreach where customers have already saved your mobile number in their phones
Limits of a broadcast list
- Capped strictly at 256 contacts per broadcast list, making large-scale marketing campaigns impossible
- Messages are delivered only to contacts who have saved your business phone number in their address book
- Offers no automated triggers, webhook integrations, or multi-agent shared customer inboxes
The Business Platform through a provider
When to choose the Business Platform
- Growing companies, educational institutes, and online stores managing thousands of customer contacts
- Automated transactional alerts such as order confirmations, delivery tracking, and appointment reminders
- Allowing multiple customer support executives to respond simultaneously from a single verified business number
Limits of the Business Platform
- Requires Meta business verification, pre-approved message templates, and per-conversation messaging fees
- Demands strict adherence to opt-in consent guidelines to maintain your phone number quality rating
Why random bulk sender tools are risky
- They send to people who never agreed to hear from you
- They break WhatsApp's business policies
- Your number can be restricted or banned
- Customers lose trust when messages feel like spam
Opt-in and consent
How to collect permission
- A tick box at checkout or on your enquiry form
- A QR code or link that opens a chat with a first message
- A reply such as YES to a keyword message
- A record of when and how each person agreed
Opt-out and respect
Every marketing message should give an easy way to stop. Remove people at once when they ask, and avoid sending too often.
Handling complaints and opt-outs
- Reply politely to anyone who says they did not expect your message
- Remove them from the list the same day
- Check how they were added, and fix the opt-in step if it was unclear
- Review opt-out numbers after each campaign
Data protection
India's data protection law expects clear consent and careful handling of personal data. We recommend taking legal advice on your consent text, and we keep your contact lists protected.
Templates and message types
Utility, marketing and authentication messages
| Type | Example | When it is used |
|---|---|---|
| Utility | Order shipped, booking confirmed, fee reminder | Updates about something the customer did |
| Marketing | Festival offer, new batch, sale | Promotions to opted-in customers |
| Authentication | One-time password | Verifying a login or payment |
Template approval
On the Business Platform, messages you start must use templates reviewed and approved by Meta. Approval often takes from minutes to a day, and unclear or pushy wording may be rejected.
Hindi and English messaging
Write in the language your customers use. Many people respond better to Hindi or a simple mix, especially outside the big cities. Keep sentences short and avoid long English words in Hindi messages. Each language version of a template is submitted for approval, so plan a little extra time when you want both Hindi and English versions ready for the same campaign.
Writing messages people read
- Start with the person's name and the reason for the message
- One offer and one clear action
- Short text with a button or link
- A language that matches the customer, Hindi, English or both
- A way to opt out
Message ideas that work
- Order shipped: name, order number and a tracking link
- Appointment reminder: date, time, place and a reschedule button
- Fee reminder: amount, due date and a payment link
- Festival offer: one offer, an end date and a reply button
- Back in stock: a short note for people who asked to be told
What you can do with WhatsApp
Order updates and cash on delivery confirmation
Send order, shipping and delivery updates, and ask customers to confirm cash on delivery orders to reduce returns. This fits well with an online store.
Appointment, fee and class reminders
Reminders cut no-shows and late payments for clinics, institutes and service businesses.
WhatsApp with your website and store
- A WhatsApp button on every page of your website
- Order and booking events trigger messages automatically
- Enquiry forms record opt-in and send a first reply
- Customers can move from a chat to a payment link
Offers and festival campaigns
Send timely offers to customers who agreed to receive them, with a clear end date and a simple way to reply.
Planning a seasonal calendar
Plan the year around the moments your customers care about: festival offers, admission months, wedding season, exam results and year-end sales. Prepare templates early, because approval and testing need time, and avoid sending more than your customers expect.
Abandoned carts and catalogue sharing
- A reminder to customers who left items in the cart
- Product catalogue and quick replies for questions
- Easy payment links in the chat
Lead follow-up
- A reply within minutes to every new enquiry
- A short follow-up after a day if there is no answer
- Labels in your chat tool to show who is hot, warm or cold
- A hand-off to a person for questions about price or fit
Setting up WhatsApp for business
Your business profile
- Business name, description, address and hours
- Website and catalogue links
- A profile image from your logo
- Quick replies for common questions
Quality rating and sending limits
WhatsApp watches how people react to your messages. If many block or report you, your quality rating falls and your sending limits drop. Useful, expected messages keep the rating healthy.
Keeping your number healthy
- Message only people who agreed
- Keep messages relevant and not too frequent
- Remove people who opt out at once
- Avoid sudden jumps in volume
- Reply to customers who answer you
Setup checklist
- A dedicated business number
- Written opt-in and opt-out text
- Approved templates for your main messages
- A person who replies to incoming chats
- A report of delivery, reads and replies
Who answers the replies?
Marketing messages create replies. Decide in advance who will answer, how fast and in which hours. A reply within the hour keeps a warm lead warm, while silence wastes the campaign.
Measuring results
What to track
| Metric | What it tells you |
|---|---|
| Delivered | Whether messages reached customers |
| Read | Whether the message interested them |
| Replies | How many started a conversation |
| Link clicks | Interest in the offer or page |
| Orders or bookings | The real result of the campaign |
Improving every campaign
Test one change at a time, such as timing, wording or the offer, and keep what works. Review opt-outs too, since many people leaving is a sign you are messaging too often.
A worked example: a coaching centre's admission campaign
Opt-in
- A tick box on the enquiry form and a QR code at the centre
- A welcome message that confirms what they will receive
Messages
- Utility: demo class date and reminder
- Marketing: new batch offer with an end date
Results
- Replies and demo bookings counted
- Admissions matched to the original enquiry
WhatsApp with your other marketing
Together with social, search and content
WhatsApp works best as part of a larger plan. Link it from your social media profiles, use it to follow up leads from digital marketing campaigns and share useful pages from our content writing team.
For different businesses
Stores use it for orders and repeat sales, see ecommerce and retail. Institutes use it for admissions and reminders, see education. Organisers use it for event updates, see events.
Red flags and questions
Red flags when hiring a WhatsApp marketing provider
- Promises to message any list you buy
- No talk of opt-in, templates or limits
- Guaranteed sales or open rates
- No reports
Common WhatsApp marketing mistakes
- Sending offers to everyone in a phone book
- Using long, pushy messages with no clear action
- Messaging at night or too often
- Ignoring replies and complaints
Questions to ask before you sign
- How will you collect and record opt-in?
- Will messages go through WhatsApp's official platform?
- Who writes and submits the templates?
- What reports will I receive?