WhatsApp is the largest messaging platform in the world, with no less than 2 billion users worldwide, a huge number, and all of them have accounts created based on a phone number. The application forces people to send messages only to phone numbers that are already registered in the contact book, but you can go over this limitation very quickly and very easily with this trick, which many of you probably didn't know about.
WhatsApp this limit may be exceeded if you use a web browser to force a message to be sent to a phone number that is not in your contact book, but it is important that it is in the platform. Those at WhatsApp have a special API that allows messages to be sent to phone numbers on the platform based only on a link on the Internet, and all so that people can chat with various people, or businesses, by accessing the link from a website.
WhatsApp: GREAT trick, what you DIDN'T know you could do in the application
WhatsApp allows you to send messages to a phone number that is not in your contact book exactly as you see above, accessing a link taking you to the platform's website, then to the application. To use the trick, you must enter the address in the address bar of the browser https://wa.me/0040740000000, of course replacing the 3/4 digits with the prefix of the country from which the number is, and the rest with the phone number itself, then pressing the button to access the address.
WhatsApp it will not be opened immediately with the option to send the message, but initially the platform website opens, with a notification that allows you to enter the application to send the message. By pressing that option, the application will be opened, and if that phone number is in WhatsApp, then you will be able to send a message to it, but if it is not an active number in the platform, then you will receive a message like the one above, which it will say that you cannot send the message.
WhatsApp has this functionality available and used by a variety of websites and applications, so you can use it to contact anyone without adding him/her to your address book.
