You can scan a WhatsApp QR code to add a friend or family member’s contact information to WhatsApp.
Scan a WhatsApp QR code
Scan in person
Open WhatsApp > Settings.
Tap the QR icon displayed next to your name.
Tap Scan > OK.
Hold your device over the QR code to scan.
Tap Add to Contacts.
You can also scan with the WhatsApp camera:
Open WhatsApp > tap Camera.
Hold your device over the QR code to scan.
Tap Add to Contacts.
On iPhone 6s and newer, you can tap and hold the WhatsApp icon on your home screen to view the quick action menu. Then, tap Camera to open the WhatsApp camera.
Scan from Photos
Open WhatsApp > Settings.
Tap the QR icon displayed next to your name.
Tap Scan, then tap the Photos icon on the bottom of the screen.
Select the WhatsApp QR code from your photos.
Tap Add to Contacts.
Scan from the New Contact screen
Open WhatsApp > tap New Chat.
Tap New Contact > Add via QR code.
Hold your device over the QR code to scan or tap the Photos icon on the bottom of the screen and select the WhatsApp QR code from your Photos.
Tap Add to Contacts.
Scan from WhatsApp camera
Open WhatsApp > tap Camera.
Tap the Photos icon on the bottom of the screen.
Select the WhatsApp QR code from your photos.
Tap Add to Contacts.
Scan within a chat
Open WhatsApp and go to an individual or group chat.