Today I am going to tell you something different. So in this article I am going to tell you about Messenger & WhatsApp Cross-Chat or integrated service.
This integration is not as easy as you might think, in addition to end-to-end encryption, WhatsApp messages are not stored on a server like on Facebook Messenger, but only on the relevant device. The website points out.
Although this is a bit of a delay due to the complexity of the task, it can be seen that Facebook has been able to achieve some success so far. The latest version of the facebook messenger app includes "whatsapp" references as shown in the list below. They point out that these are references used to perform the integration between the two platforms.