Guide on fixing WhatsApp Don't Get Notification IssueStep 1. Go to "Settings" and find "Application manager".
Step 2. Find WhatsApp from the Application manager.
Step 3. Check the "Show notifications" as shown below and now you can get notifications from WhatsApp now.
Note: For some Android OS, you need to go to "Settings" > "General" > "Application manager".
These simple steps also work when you want to mute the notifications from other apps on your Android if you think that it is too annoying. Just uncheck the "Show notification" and then you can get rid of the disturbing notification from the specific app now.