YouTube is testing a new messaging feature in its mobile app that allows users to share videos directly with friends and family. Users must be at least 18 years old and signed into a YouTube channel to use this feature. To share a video, users can tap the notification bell to generate an invite link, which can be sent to others. Once the invite is accepted, the sender receives a notification. Users can also share videos using the share button under the video player and have options to unsend or delete messages. This experiment is currently limited to users in Poland and Ireland.