The Starred Messages feature allows you to bookmark specific messages so you can quickly refer back to them later.

To star a message

1. Tap and hold on any message in a chat.
2. Tap star.

To unstar a message

1. Tap and hold on the message you want to unstar.
2. Tap unstar.

Note: Removing the star will not delete the message.

To view the list of messages you've starred

To see your starred messages in a specific chat, tap on the name of the group or individual chat, then tap starred messages. You can see the starred messages in all your chats by tapping More and selecting starred messages.

Learn how to use the Starred Messages feature on: Android | iPhone