When you 'share' with the barcode app and select to WhatsApp and it confirms the picture/message you want to send, enter it then. They don't need the pin, it's a just in case for me.
I've just used up my remaining 86. This guy knew how to make the scanner be in automatic scanning mode so he just set it on the table and let's me know when to scan each code. Quicker as he doesn't need to hold the gun and push the button
