WhatsApp opt-in: rules, message examples and the easiest ways to collect it
WhatsApp opt-in is a person’s permission for your business to message them on WhatsApp. Meta’s policy says you must get it before you start a conversation, make clear that the person is agreeing to WhatsApp messages from your business by name, and honour opt-out requests. Opt-in can be collected anywhere: a website form, an ad, a QR code, in a call, or simply when the person messages you first.
Opt-in sounds like legal paperwork, but on WhatsApp it is the single biggest thing that decides whether your messages land, get replies, or get your number blocked. Here is what the rule actually says and the simplest ways to collect consent without slowing down your sales.
This is practical guidance, not legal advice. Read Meta’s WhatsApp Business Messaging Policy for the current rules, and check data protection law where you operate (in India, the DPDP Act).
What Meta’s policy requires
In short, on the WhatsApp Business Platform you must:
- Get opt-in before you message someone first. They must have given you their number and agreed to hear from you on WhatsApp.
- Make it clear who is asking. The person should know your business name and that messages will come on WhatsApp.
- Respect opt-outs quickly, and don’t message people who blocked or asked you to stop.
- Send what they expect. Opting in for appointment reminders is not opting in for every promotion.
Why opt-in matters for sales
- Fewer blocks and reports, which keeps your quality rating healthy and your messaging limit growing.
- Higher reply rates, because people recognise you.
- Lower cost: messages that get replies keep conversations in the free 24-hour window.
- Less risk of a restricted or banned number. See why business numbers get banned.
8 ways to collect WhatsApp opt-in
- Website forms. Add an unticked checkbox: “Yes, send me updates about my enquiry on WhatsApp from [Business name].”
- Click-to-WhatsApp ads. The person messages you first, which opens the conversation. Ask for ongoing consent in your first reply. See click-to-WhatsApp ads.
- Lead form ads. Add a custom consent question in Facebook and Instagram lead forms. See Facebook lead ads to WhatsApp.
- “Chat with us” links and QR codes on your site, visiting cards, standees and invoices. Use our WhatsApp link generator.
- In-chat consent. “Would you like us to send you updates and reminders here? Reply YES.”
- On calls. “Shall I send the details on WhatsApp?” Note the yes in your CRM against the lead.
- At the counter or reception. A sign-up sheet or tablet form with the WhatsApp line printed.
- Checkout or booking pages with a WhatsApp updates option.
Opt-in message examples
Form checkbox: “I agree to receive messages about my enquiry and offers from Sunrise Dental on WhatsApp. I can opt out anytime.”
First reply to an ad lead: “Thanks for messaging Sunrise Dental! I’ll answer your question here. Would you also like reminders and occasional offers on WhatsApp? Reply YES or NO.”
After a call: “Hi Rahul, as discussed on the call, here are the fee details for the weekend batch. We’ll send class reminders here; reply STOP anytime to stop.”
Re-confirming an old list: “Hi Meera, you enquired with us earlier this year. Do you still want updates from Bright Coaching on WhatsApp? Reply YES to stay, or STOP.”
Handling opt-outs properly
- Accept STOP, unsubscribe, “don’t message” and similar wording, in any language you use.
- Confirm once: “Done, you won’t get more messages from us. Reply START if you change your mind.”
- Make sure automation stops too, not just the person handling the chat.
- Keep a record with the date, so a teammate or an import does not undo it.
Common mistakes
- Treating a bought or scraped list as opted in. It is not.
- Hiding consent in terms and conditions nobody reads.
- Getting consent for reminders and then sending daily offers.
- Adding customers to WhatsApp groups without asking; their numbers are exposed to everyone.
How OakDeal handles opt-in and opt-out
OakDeal keeps every lead’s source and history, so you can see how and when a person first contacted you. Automatic follow-ups run only within business hours and stop as soon as a lead replies, buys or sends STOP, and opted-out leads are not messaged again by any teammate or automation.
Frequently asked questions
What does opt-in mean on WhatsApp?
It means the person agreed to receive WhatsApp messages from your business. Without it, you should not start a conversation with them on the WhatsApp Business Platform.
Does a customer messaging me first count as opt-in?
It lets you reply to that conversation. For later marketing messages, it is best practice to ask clearly whether they want updates, and record the answer.
Does opt-in have to be a checkbox?
No. Meta allows opt-in through any channel, as long as it is clear what the person is agreeing to. Many businesses use an unticked checkbox on forms because it is easy to prove later.
Is a phone number on a form enough?
No. Collecting a number is not consent. The form should state that you will contact them on WhatsApp, with your business name.
How should I handle opt-outs?
Stop messaging as soon as someone asks, whether they type STOP, tap an opt-out button or say they are not interested. Keep a record so no teammate or automation messages them again.