As per the post on Google+ the much awaited Notification and Alerts icon in Google AdWords will be rolled out to the advertisers very soon.
Google started phasing in the new cohesive structure early in February to streamline the notifications and alerts system in AdWords. The new development will allow advertisers to prioritise their notifications and focus on the more important ones first. All the alerts and suggestions will now be available in the notification bell icon making your AdWords account clutter free.
The most crucial ones will be clearly visible on the red bar at the top of the account or with a yellow bubble icon displaying titles of critical messages.Google AdWords Overhauls Notification and Alerts Icon!,