If the sender agrees, WhatsApp now allows you to save or vanish messages.
**********************************
The newest feature, a variation on WhatsApp's Disappearing Messages technology first offered in 2020, was formally unveiled today. Keep in Chat is a feature that enables you to save texts that you want to keep for later, even if they are the fading variety.
When you choose to keep a particular disappearing item, the sender is informed and given the opportunity to overrule your decision. Communication cannot be kept once the sender makes that decision; no one else may keep it. Whenever the countdown runs out, the message will unavoidably be removed.
This is a clever technique to allow for the storage of some fading messages without comprehensively defeating the purpose of the whole idea. It's unlikely to see a lot of use or rather, a lot of sender approvals; otherwise, why wouldn't they just send regular messages instead?—but it's still unquestionably in the 'good to have' category.
You may access saved messages in the Kept Messages folder, arranged by chat and marked with a bookmark icon. According to WhatsApp, the Keep in Chat feature will be available to all users internationally "over the next few weeks."