WhatsApp has for some time been a highly praised function by users who use the application for iPhone si Android, but it seems that it was recently broken by the American company, without anyone being notified about it. At one point, WhatsApp implemented a function that allows the deletion of messages sent to anyone, without the person who received the messages being able to stop this procedure in any way.
WhatsApp recently increased the limit for the definitive deletion of sent messages, from 5 minutes to 1 hour and 8 minutes, this limit remaining active, but a second condition was implemented for messages to be deleted from the list of friends' conversations. If the person who received the messages does not receive within one day, one hour and 8 minutes the request to delete the message from the conversation he had with you, that message will not be deleted, remaining permanent.
WhatsApp: The MAJOR feature that was BROKEN Recently
WhatsApp has practically implemented a condition that damages to a very good extent the function that allowed the complete deletion from the platform of messages sent by anyone, so if you made a mistake, now the chances of it being repaired decrease dramatically. Basically, if the person who received the message from you via WhatsApp does not log into the platform for one day, one hour and 8 minutes, that message will not be deleted from the conversation with you, even if you requested it.
WhatsApp has not offered any explanation for this stupid change implemented in its platform, but it severely limits the functionality of the system that allows the deletion of sent messages, even from the conversations of the people who received the messages. It is very unlikely that WhatsApp will ever offer any explanation for this stupid decision, so now you have to be more careful with the messages you send, because they remain permanently in everyone's conversations.