LINE: Hiding/deleting chats

The differences between unsending and deleting a message are as follows.

Unsending a messageDeleting a message
Result of actionThe message will be removed from the chat for both you and the person or group you’re messaging.The message will be removed from the chat for you only.
Time restrictionOnly within 24 hours of the message being sentAt any time
Applicable contentAll content
Note: Content that was already deleted from a chat cannot be unsent.
All content
Notice to other usersA message saying “(Your name) unsent a message” will appear in the chat.No one will be notified.
Restoring the messageCannot be restoredCannot be restored

Unsending messagesTap and hold the message you want to unsend and then tap Unsend > Unsend.
Note: After you unsend a message, a notice will appear for everyone in the chat showing that you removed it.

You can unsend messages, stickers, photos, videos, voice messages, URLs, contact information, location information, and files.