Work is already underway
Last year, Facebook founder Mark Zuckerberg announced plans to combine Facebook, Instagram, and WhatsApp into one unique service. While the implementation of these plans is still very far away. However, the first signs of future cross-platform compatibility between Facebook Messenger and WhatsApp have already appeared.
Facebook Messenger and WhatsApp users will be able to communicate with each other
Simply put, Facebook Messenger and WhatsApp users will be able to communicate with each other. This was told by the thematic resource WABetaInfo. In particular, this is indicated by discovered links to WhatsApp in Facebook Messenger, including data on chat settings, contacts, including blocked ones, and the like.
There are many challenges to such compatibility and integration, given the nature of WhatsApp and Facebook Messenger. However, the code in Facebook Messenger indicates ongoing work in this direction. It is noted that WhatsApp content must be stored on the device and cannot be transferred to Facebook servers.