Why I Don T Get Whatsapp Notifications. Now scroll down and click on WhatsApp. Open your phone Settings app.

Follow the prompts on the screen. Unmute WhatsApp Notifications You might already know that WhatsApp lets us mute notifications for certain users and groups as well. Now scroll down and click on WhatsApp.
Make sure that it is enabled.
Turn on BACKGROUND DATA if it is off. Here where your WhatsApp notifications are not showing you probably had clicked the wrong settings. If this setting is enabled you wont receive WhatsApp notifications. Under the Alerts section make sure the select the Notification Center along with either the lock screen or banners.

