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WhatsApp QR code for the physical store: a practical guide

In short
A WhatsApp QR code turns every customer who enters the store into a reachable contact. In the window, on the receipt or on the packaging, it opens a chat with one tap.
A WhatsApp QR code for the physical store is the simplest bridge between the offline world and your digital conversations: the customer points the camera at the code and finds themselves in a chat with you, without having to save a number or download anything. For a business with a point of sale it's a direct way to build an address book of real customers, whom you can then reach with offers, reminders and news. In this guide we look at where to place QR codes, what to do with them and how not to waste the contacts you collect.
How a click-to-chat QR code works
Behind the QR there's a simple WhatsApp click-to-chat link: it contains your number and, optionally, a pre-filled message. When the customer scans it, WhatsApp opens already on the conversation with you, often with a ready text like 'Hi, I'd like some information'. Just one tap on send and the chat is started. No form, no extra app, no transcribing numbers by hand.
Where to put the QR code in store
- In the window: you intercept even those passing by when you're closed and want information.
- At the checkout: the moment of payment is perfect to invite them to stay in touch.
- On the receipt: turn a purchase into an open channel for the future.
- On packaging and products: after-sales support and repurchase a scan away.
- On tables or in the waiting area: for bookings, menu or quick requests.
Give a reason to scan
A QR code alone isn't enough: the customer needs to know why to scan it. The calls to action that work are concrete: 'Message us on WhatsApp for your welcome discount', 'Book your appointment in chat', 'Get our offers in preview'. The clearer and more immediate the benefit, the more people scan. An incentive, even a small one, significantly raises the opt-in rate.
Put an incentive on the first scan, for example a small discount or a gift to collect in store. It's the fastest way to fill the address book with contacts who have already bought or are about to, that is, the most valuable ones.
What to do after the scan
The scan is only the beginning: the value lies in what happens next. That's why you need an automatic welcome message that greets the customer, explains how you can help them and - if you've activated the incentive - immediately delivers the promised discount. From there the contact enters your address book with a tag, so later you can include them in campaigns without searching by hand.
Consent matters
When a customer writes to you by scanning the QR, they are the one starting the conversation: it's a great starting point. But if you want to send them promotional communications in the future, you must collect valid marketing consent, as required by the GDPR. A good moment is precisely the welcome message: explain what kind of communications you'll send and how they can unsubscribe at any time.
How to do it with SendApp
With SendApp you connect your WhatsApp number - via official Meta API with green tick, or via WhatsApp Web QR with no per-message costs - and generate the click-to-chat links to put behind your QR codes. Conversations come into the multichannel inbox, contacts are saved in the CRM with tags (for example 'store-customer'), an automatic welcome message greets those who scan and the AI agent can answer questions 24/7. Then you nurture the contacts with broadcast campaigns personalized via {name}. Plans start at 19 euros a month.
Put it into practice with SendApp
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Redazione SendApp
The SendApp team — WhatsApp marketing and AI platform for businesses.