Microsoft Bing announced they are shutting down the Bing Ads Express service because their customers need more granular controls when managing search campaigns.

The service is being shut down on July 30, 2014 and there seems to be no migration path from those running ads on Bing Ads Express to normal Bing Ads.

Microsoft said:

Here is a video on Bing Ads Express:

Bing Ads Express from Deep Sky Studios on Vimeo.

Forum discussion at WebmasterWorld.