You can mute group notifications for a specified period of time. You'll still receive messages sent to the group, but your phone won't vibrate or make noise when they're received.

Mute group notifications

1. Open the WhatsApp group chat, then click the group subject.
2. Select the Mute box.
3. Select the length of time you'd like to mute notifications for.
4. Click MUTE NOTIFICATIONS.

Alternatively, hover over the group in your Chats list, then click Menu ( or ) > Mute notifications. Select the length of time you'd like to mute notifications for > click MUTE NOTIFICATIONS.

Unmute group notifications

1. Open the WhatsApp group chat, then click the group subject.
2. Uncheck the Muted box.
3. Click UNMUTE.