Keep track of conversations in Messages on iPhone
In the Messages app , you can mark messages as unread or pin and unpin conversations to prioritize messages in the Messages list.
Mark messages as unread
You can mark conversations as unread so you can return to them later when you have time to respond.
In the Messages list, swipe right on a conversation to mark it as unread. Or drag right and tap .
Tip: You can also mark several messages as unread at once. Tap Edit or , tap Select Messages, select the conversations you want to mark as unread, then tap Unread in the bottom-left corner.
See a list of your unread messages
To see a list of your unread messages, you must first set up message filtering.
Go to Settings
> Messages.
Scroll down to Message Filtering, then turn on Filter Unknown Senders.
In the Messages conversation list, tap Filters, then tap Unread Messages.
Pin a conversation
You can pin specific conversations to the top of the Messages list so the people you contact most always come first in the list.
Do any of the following:
Swipe right on a conversation, then tap
.
Touch and hold a conversation, then drag it to the top of the list.
Unpin a conversation
You can unpin specific conversations at the top of the Messages list.
Do any of the following:
Touch and hold a conversation, then drag the message to the bottom of the list.
Touch and hold a conversation, then tap
.