Collecting WhatsApp contacts: ways in which customers voluntarily join in
You collect WhatsApp contacts by having people enter their number voluntarily and read, while doing so, that they will receive messages from your business.
Collecting WhatsApp contacts: these are the ways.
To collect WhatsApp contacts, you offer people the option to enter their number voluntarily, and you say clearly that they will receive messages from your business. According to Meta, the opt-in must name your business. You may not contact someone you bought or copied from an address book this way. As of: 02.11.2026.
The ways compared.
| Option | How it works | Explicitly named by Meta |
|---|---|---|
| website | Form or pop-up with number and notice text | Yes, “Website” |
| In person or on paper | Sign-up card at the counter or tablet in the store | Yes, “In person or on paper” |
| Phone | The caller agrees in the voice menu | Yes, via IVR flow |
| SMS | The contact replies to a consent SMS | Yes |
| QR code in the store | The contact scans it and signs up on your page | No, the path leads through website or paper |
| “Start chat” button | The contact writes to you first | No, not explicitly |
Source: Meta for Developers, Getting opt-in, retrieved on 02.11.2026. The QR code and button rows are our classification, not a statement from Meta.
What must an opt-in according to Meta contain?
An opt-in must meet three requirements: it says clearly that the person wants to receive messages, it names the business, and it complies with applicable laws. That is what Meta's documentation says. You choose the method yourself, as long as these points are met. Our recommendation: get separate consents for different types of messages, so that nobody unsubscribes or blocks out of annoyance.
Sources: Meta, Getting opt-in and WhatsApp Business Messaging Policy, accessed on 02.11.2026.
How do you collect contacts on your website?
You collect contacts on your website with a form or pop-up that shows three things: a field for the number, your company name and one sentence on what the person gets. An example: "Ich möchte Neuigkeiten und Angebote von Blumen Meier auf WhatsApp erhalten." Put the sentence right next to the button, not in the small print. With pre-ticked boxes, nobody knows what they agreed to. How you additionally secure it with a confirmation in WhatsApp is explained at Double opt-in on WhatsApp.
How do you get the number in the store or on the phone?
In the store, you get the number with a sign-up card or a tablet at the counter, with the same notice sentence as on the website. Meta explicitly names “in person or on paper” as a way, as well as the phone with a voice menu. What matters is that the person signs or taps themselves. A slip with a number that someone dictated to you without knowing the notice isn't enough, because Meta requires clear consent to messages from your business.
Why do people sign up voluntarily ?
People enter their number when they know beforehand what they will get and what it does for them. This is a recommendation from experience, not proof from Meta. Name a concrete benefit like the appointment reminder, a heads-up about new stock or a discount for the next visit. Say how often you will write, and stick to it. Also say how to stop. Anyone who doesn't feel well looked after will block or report you, and according to Meta's policy this can limit your message volume.
What counts as spam and what doesn't?
Spam is any message to a number that wasn't given to you yourself or whose owner hasn't agreed to receive messages from you. Meta requires that you only write to people who have given their number and agreed to be contacted. Bought lists and numbers from business cards without consent don't meet this. Meta also requires that you respect requests to unsubscribe. For the legal side, read Is WhatsApp advertising to customers allowed?
Source: WhatsApp Business Messaging Policy, accessed on November 2, 2026.
What do you do after sign-up with the contact?
After sign-up, you send the contact a welcome message, so they see right away that everything worked. Then comes the first content you promised. How to build a newsletter is explained at Creating a WhatsApp newsletter. Messages outside an ongoing conversation go out on the Business Platform only as an approved template, see Business App or Business Platform.
What does SmartChat offer for collecting?
SmartChat is a WhatsApp marketing solution for businesses. In every plan, including the free one, you get a landing page, a website pop-up, a click-to-WhatsApp button and a QR code. The contact confirms the sign-up automatically via double opt-in, and SmartChat stores the record with date, time and method. Unsubscribing works with STOP. Try SmartChat for free.
Frequently asked questions about collecting contacts.
From how many contacts is the first send worth it?
There is no minimum. You can start with the first contact who signs up voluntarily.
May I take my customers' numbers from my customer file?
Only with their consent. Meta requires that the person has agreed to receive messages from your business. Get the consent first.
Do I have to name my company in the opt-in?
Yes. According to Meta's documentation, the name of the business the person is signing up with must be clearly stated.
Is a QR code in the store enough?
A QR code leads people to your sign-up page. The notice text with your company name has to be there, because the opt-in counts, not the code.
Can I collect contacts with a prize draw?
That is a question for your legal advisor. Meta requires in any case that the consent is clear and complies with the law.
What happens if contacts block or report me?
According to Meta's policy, users can block or report businesses, and the system can limit your message volume.
How does a contact stop receiving messages?
You explain the way in the opt-in and respect every request to unsubscribe, as Meta requires.
Your WhatsApp marketing is ready in 60 seconds
Enter your website. SmartChat AI builds the system for you.
Last updated: By SmartChat Team