WhatsApp QR Code: Let Customers Start a Chat in One Scan
For many shops and service businesses, WhatsApp is where customers actually talk to them. A WhatsApp QR code turns a poster, bill or delivery bag into a one-scan way to start that chat, without saving your number first.
Here is how to make one that works on the first try, what to write in the pre-filled message, and where it brings in the most chats.
How a WhatsApp QR code works
The code holds a wa.me link such as https://wa.me/919876543210?text=Hi%2C%20I%20want%20to%20order. When someone scans it, WhatsApp opens a chat with that number and puts the message in the text box.
Nothing is sent automatically. The customer can edit or delete the message and decides whether to press send. If they do not have WhatsApp, the link opens a web page offering to install it or continue in a browser.
Get the number format right
WhatsApp needs the full international number: country code first, then the number, with no plus sign, spaces or leading zero. An Indian mobile 098765 43210 becomes 919876543210.
In the generator, pick the country code separately and type only your number. Spaces, brackets and dashes are removed for you. The number must be registered on WhatsApp or WhatsApp Business.
Pre-filled message ideas
A short opening line helps customers who do not know what to type, and helps you sort chats by where they came from.
- Shop counter: “Hi, I want to place an order.”
- Delivery bag: “Reorder: ” (they add the items).
- Service van: “I need a quote for…”
- Restaurant table: “Table booking for”
- Flyer or classified ad: “I saw your flyer about…”
Where to place it
| Place | Size | Why it works |
|---|---|---|
| Counter or billing desk | 6–8 cm | Customers ask questions later instead of calling |
| Delivery bags and boxes | 3–4 cm | Easy reorders from home |
| Vehicle or site board | 15–25 cm | People can message while passing; print large |
| Visiting card | 2–2.5 cm | A chat is easier than a call for many customers |
Privacy and practical tips
- The code shows your phone number to anyone who scans it. Use a business number where possible.
- If you switch numbers, printed codes keep opening the old one. Print new codes before you retire a number.
- Write your reply hours next to the code so customers know when to expect an answer.
- Keep the message short. A long message makes the code denser and harder to scan from a distance.