Guide · WhatsApp
Opt-in, approved formats, timing and opt-out wording that keep your offers welcome and your number healthy.

Every shop owner knows a story like this. A boutique sends the same sale message to every number in the phone, three times in one week. By the weekend, the number is restricted and the owner is posting "Please save our new number" on Instagram.
WhatsApp is where your customers talk to family and friends, so they guard it. Send something unwanted and they block you, report you or quietly stop reading. Send something useful to people who asked for it, and you get replies like "1 kg kaju katli rakh dena, shaam ko aata hoon."
This guide covers what keeps a business number healthy: permission, the right message format, the right people, sensible timing and an easy way out. Most of it applies whether you use the WhatsApp Business app or the WhatsApp Business Platform through a provider like GrowthDwar.
Why numbers get blocked
WhatsApp pays attention to how people react to business messages. Blocks and spam reports count against you.
On the WhatsApp Business app, a number that sends lots of unwanted messages can be banned. Using unofficial bulk-sending software or browser extensions to push mass messages through the app breaks WhatsApp's terms and makes a ban far more likely.
On the WhatsApp Business Platform, Meta gives each business number a quality rating based on how people respond to your messages, including blocks and reports. If quality drops, Meta can limit how many people you can start conversations with, pause a message format that is getting poor feedback and, if problems continue, restrict the number.
The fix is the same in both cases. Send fewer, better messages to people who want them.
Rule 1: Get a clear yes first
Meta's policy for the Business Platform says you may message people only if they have given you their number and agreed to receive messages from your business on WhatsApp. On the app, the same habit keeps you out of trouble.
A good opt-in is:
- Clear. It names your business and says the messages will come on WhatsApp.
- Specific. Offers, order updates, appointment reminders: say which.
- Their choice. A word they send, a "yes" they say or a box they tick themselves. Never a box ticked for them.
- Recorded. Note who said yes and when. In GrowthDwar, add a tag like "offers yes" the moment they agree.
What does not count: a number from a family or society group, a visiting card from a trade fair, a list someone sold or shared with you, or a customer who gave their number only for a delivery. Permission for one thing is not permission for offers.
Opt-in lines you can copy
These are examples. Change the business name and number.
Example: said aloud at the counter while billing
"Shall we send you our festival offers on WhatsApp? Just a few messages around festivals, and you can stop anytime."
Example: a small sign at the counter
Get our festival offers on WhatsApp. Send OFFERS to 98XXX XXXXX or scan the QR code. Reply STOP anytime to stop.
Example: on your website
Want our new arrivals and festival offers on WhatsApp? Tap the WhatsApp button and send OFFERS. You can reply STOP at any time.
A GrowthDwar website already has a big WhatsApp button, so this line fits in your "about us" or next to your offers. If you ever use a form with a checkbox for offers, leave the box unticked so the customer decides.
Example: printed on the bill or receipt
Thank you for shopping at Sharma Sweets. Want festival offers on WhatsApp? Message OFFERS to 98XXX XXXXX. Reply STOP anytime to stop.
When someone sends OFFERS, confirm what they signed up for:
Thank you, you are on our offers list. We will message you around festivals and when new gift boxes arrive. Reply STOP anytime to stop.
Rule 2: Use approved formats after 24 hours
On the WhatsApp Business Platform, every time a customer messages you, a 24-hour window opens. Inside it, you can reply normally. Each new message from them restarts the window.
Outside that window, you can only start a conversation with a message format approved by Meta. You write the message once, with blanks for details like the customer's name, and Meta reviews it before you can use it. Meta sorts these formats into types, such as marketing for offers and utility for updates about an order or booking. Choose the type honestly, because Meta checks it.
Meta also charges for certain messages, especially marketing ones. With GrowthDwar, WhatsApp's message charges are billed by Meta directly. One more reason to send only to people who will care.
Tips for messages people actually read
- Say who you are in the first line.
- One offer per message, with one clear action: "Reply ORDER", "Book before Sunday".
- Use the customer's name where you can.
- No ALL CAPS, no row of emojis, no "URGENT".
- End every offer with the same line: "Reply STOP to stop offers."
Rule 3: Send it to the right people
The same offer does not suit everyone. A wholesale buyer does not want the small snack combo. A family that just placed a wedding order does not need a monsoon samosa offer three days later.
Tag customers as you chat and bill:
- What they buy: "dry fruit boxes", "namkeen", "party orders".
- Who they are: "wholesale", "corporate gifting", "regular".
- Where they are: "delivery Lajpat Nagar", "delivery Defence Colony".
- What they agreed to: "offers yes", "no offers".
Then send each campaign only to the tags it fits. In GrowthDwar, campaigns go to contacts filtered by tags, and you can import a list of customers who opted in from a CSV file. If you import, bring in only people who said yes.
Rule 4: Get timing and frequency right
There is no magic number of offers per month. The real test is simpler: would your customer be glad to hear this from you, at this hour, this often?
- Send during the day, not late at night or early in the morning.
- Tie each message to a real moment: a festival, fresh stock, a new menu, a holiday closure.
- Space them out. If you would feel awkward saying it at the counter every week, do not send it every week.
- Skip "just checking in" messages with nothing new in them.
Rule 5: Make stopping easy, and honour it
Put the same opt-out line at the end of every offer. When someone replies STOP, remove the "offers yes" tag, add "no offers" and confirm the same day:
Done. You will not get offers from us anymore. You can still message us here anytime to order.
A customer who can stop politely has no reason to block or report you. Every polite STOP protects your number.
Do and don't
| Do | Don't |
|---|---|
| Ask for permission in clear words | Add numbers from groups, visiting cards or bought lists |
| Tag everyone who says yes | Assume an old customer wants offers |
| Name your business in the first line | Send a message that reads like it came from a stranger |
| Send each offer to the tags it fits | Send the same message to everyone |
| Use approved formats after 24 hours of silence | Use unofficial bulk-sending apps or extensions |
| End every offer with "Reply STOP to stop offers" | Hide the way out or ignore STOP replies |
| Watch delivered and read counts | Keep sending to people who never read |
| Send during the day | Send at 11 at night |
Watch the signals
After each campaign, look at what happened.
- Read counts. GrowthDwar shows delivered and read counts for every campaign. If few people read it, the offer, the timing or the tag missed.
- Replies. Questions and orders are the best sign you got it right.
- STOP replies. A few are normal. A sudden jump means the message did not suit that tag.
- Quality rating. On the Platform, check your number's quality rating in Meta's business tools. If it drops, slow down and send only to your most engaged customers while it recovers.
An example offer, start to finish
Take an example shop, Sharma Sweets in Lajpat Nagar, Delhi. It is made up, here only to show the flow.
Three weeks before Diwali, Mr. Sharma picks a Diwali poster in GrowthDwar, changes the line to "Gift boxes now open for orders" and shares it to his WhatsApp status and Instagram. His logo, shop name and phone number are already on it.
Next, he sends one campaign using an approved format, only to contacts tagged "offers yes" and "corporate gifting":
Namaste Mr. Arora, this is Sharma Sweets, Lajpat Nagar. Our Diwali gift boxes are ready: kaju katli, assorted mithai and dry fruit boxes from ₹450. Order by Dhanteras for delivery across South Delhi. Reply ORDER to place yours. Reply STOP to stop offers.
Replies land in the shared inbox. Bulk enquiries are assigned to Mr. Sharma, and counter staff answer price questions with a saved reply. Two people reply STOP. Their tags are changed the same evening, and they get a polite confirmation.
Regular customers tagged "offers yes" get a separate, shorter message about fresh kaju katli the week before Diwali. Nobody gets both messages on the same day.
The short version
- Ask first, in clear words, and tag who says yes.
- After 24 hours of silence, use a format approved by Meta.
- Send each offer only to the tags it fits.
- Message during the day, around real moments.
- End every offer with an easy way to stop, and honour it the same day.
- Watch read counts, replies and STOPs, and adjust.
Getting this right is mostly habit. GrowthDwar puts opt-in tags, approved message formats, scheduled campaigns and delivery counts in one dashboard, so the habit is easy to keep. Start with the 14-day free trial, no card needed, and send your next festival offer the right way.
Questions
Why do WhatsApp business numbers get blocked?
Usually because customers block or report the number after getting messages they did not want. On the WhatsApp Business Platform, that feedback lowers your number's quality rating, which can lead to limits and, if it continues, restrictions. Unofficial bulk-sending tools that drive the WhatsApp app break WhatsApp's terms and can get the number banned.
Can I send offers to every number saved in my phone?
No. Send offers only to people who agreed to receive messages from your business on WhatsApp. A number from a group, a visiting card or a bought list is not permission. Ask first, and record who said yes.
What is the 24-hour window on WhatsApp?
On the WhatsApp Business Platform, when a customer messages you, you can reply normally for the next 24 hours, and each new message from them restarts that window. After that, you can only start a conversation with a message format approved by Meta, sent to customers who opted in.
How often can I send offers on WhatsApp?
Judge by how your customers react rather than by a fixed number. Tie messages to real moments like festivals, fresh stock or a new menu, and watch read counts and STOP replies. If people stop reading, slow down.
How should customers stop getting my offers?
End every offer with the same simple line, such as "Reply STOP to stop offers". When someone replies STOP, remove them from your offers list the same day and send a short confirmation. A customer who can stop politely has no reason to block or report you.
Can I try GrowthDwar before paying?
Yes. Every account starts with a 14-day free trial and no card is needed. You can set up your website, connect WhatsApp and send your first messages before choosing a plan.
Put this into practice this week
Website, bookings, WhatsApp and posters in one place. Start your 14-day free trial, no card needed.
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