Whatsapp If a WhatsApp social media Phone number has been entered in Site Settings, a pop up will display on the website.  Behaviour On mouseover (or tap for touchscreen devices), this will open as below. The customer will then be able to enter a message. When sent it will either: open the Whatsapp app on their device (if available) open Whatsapp for web Customisation It is possible to amend the colour of: Title Title background Message Button image  Position (left and right)