In the process of merging all apps into one, Facebook CEO Mark Zuckerberg has also pointed out that that facebook will bring back the chat feature in its main app.
Currently, the chat button on Facebook acts as a shortcut to a standalone Messenger app which has over 1.3 billion users.
If you do not have downloaded Messenger on your smartphone, the shortcut will take you to Google Play Store or Apple App Store.
Facebook upset millions of users when it removed chat from its core mobile app in 2014 and created a standalone app called Messenger.
Zuckerberg is planning to merge Facebook, WhatsApp and Instagram into a single messaging service by 2020.
It means Instagram users can connect with people on WhatsApp and vice versa.