How to pin a chat
The pin chat feature allows you to pin up to three specific chats to the top of your chats list so you can quickly find them.
Pin a chat
On iPhone: Swipe right on the chat you want to pin, then tap Pin.
On Android: Tap and hold the chat you want to pin, then tap Pin chat
Unpin a chat
On iPhone: Swipe right on the pinned chat, then tap Unpin.
On Android: Tap and hold the pinned chat, then tap Unpin chat