WhatsApp Notifications Not Working — What Causes It & How to Fix It

What Does This Error Mean?

WhatsApp notifications not working usually means the notification permission was turned off in your phone settings. Do Not Disturb mode and Battery Saver can also silently block alerts. Checking your phone's notification settings for WhatsApp is the first step.

Affected Models

WhatsApp on Android
WhatsApp on iPhone
WhatsApp on Samsung
WhatsApp on Pixel

Common Causes

WhatsApp notifications are turned off in your phone's settings
Do Not Disturb mode is active and silencing alerts
A specific contact or group has been muted
Battery Saver or Low Power mode is blocking background app activity
Notification permission was revoked during an app or OS update

How to Fix It

Check WhatsApp notification permissions in your phone settings.

On iPhone: Settings > Notifications > WhatsApp — turn on Allow Notifications, Sounds, and Badges. On Android: Settings > Apps > WhatsApp > Notifications — enable all.
Turn off Do Not Disturb mode.

On iPhone: swipe down from the top-right corner and tap the crescent moon icon to turn it off. On Android: pull down the notification shade and look for Do Not Disturb.
Check if specific contacts or groups are muted.

Open the chat, tap the contact or group name at the top, and check the mute status. Tap Unmute if needed.
Turn off Battery Saver or Low Power mode.

On iPhone: Settings > Battery > Low Power Mode — toggle it off. On Android: Settings > Battery > Battery Saver — turn it off.
Reinstall WhatsApp if nothing has worked.

Back up your chats first through WhatsApp Settings > Chats > Chat Backup. Then delete and reinstall the app.

When to Call a Professional

If notifications fail after trying everything, try reinstalling WhatsApp. If that still doesn't work, contact WhatsApp support through Settings > Help > Contact Us.

Frequently Asked Questions

Why do WhatsApp notifications work for some contacts but not others?

Individual chats and groups can be muted independently. Open the chat that isn't giving notifications, tap the contact or group name, and check the mute setting. If it's muted, tap Unmute to restore notifications for that chat.

How do I unmute a WhatsApp chat?

Open the chat and tap the contact or group name at the top of the screen. Scroll down to find the Mute option and tap Unmute. Alternatively, long-press the chat in your chat list and look for an Unmute option.

Does Battery Saver really block WhatsApp notifications?

Yes — on Android especially, Battery Saver restricts background app activity. This stops WhatsApp from checking for new messages in the background. Turning off Battery Saver (or adding WhatsApp to its exceptions list) restores notifications.