An "Open Blue Circle with Check Mark" icon on Facebook messenger means the message has been received and processed by the Facebook servers Which, in simple language, this icon indicates that the message has been sent from your end However, yet has to be seen by the user at the other endFacebook messenger Icons Download 380 Free Facebook messenger icons @ IconArchive Search more than 600,000 icons for Web & Desktop here You can see which of your Facebook friends have installed and use Facebook Messenger by clicking the "Active" tab at the top of your friends list (v) This person uses facebook messenger This symbol shows that this Facebook friend has Facebook Messenger so they should see your message immediately (unless they are busy or something and are not with their phone
Facebook Messenger Symbols What Do They Mean Grazia