WhatsApp messenger team introduced disappearing messages in private chats by default. If you enable it, in all new conversations the correspondence will be automatically erased after a specified period of time..
This was announced by the owner of the Facebook company Mark Zuckerberg.
To set up "
In the " By the way, this functionality "
WhatsApp also expanded the list of available time slots for the function. Previously, it was turned on manually for each chat with the only option - auto delete after a week. Now there is a choice between 24 hours, 7 and 90 days.