Whats app issue?

[WPCentral Question]

Hi ,

I am using NOKIA LUMIA 720 windows mobile for the past one year , i am not getting any notifications when i receive a message in whats app,
And when i launch into the apps it receives the message, i am not getting notifications when i receive a message , i am confused on this issue please help me in this .

 

[xandros9]

In battery saver (8.1) / background tasks (8.0 settings) is Whatsapp allowed to run in the background?