Mention a colleague

In a chat, you can mention a certain person to make sure they read your message. To do this, enter @ and select the user from the list. The selected user will get a notification.

If you're mentioned

In this case, you'll see the icon with the number of mentions next to a chat in the chat list. To quickly get to the message with a mention, open the chat and press the icon in the lower-right corner. If you were mentioned several times, the icon will bring you to the earliest unread message with a mention.