In September 2014, Microsoft Ads combined tablet and PC/laptop campaigns, while smartphone campaigns remained separate. As of March 23rd 2015, Microsoft Ads began combining device targets, essentially removing the option to target mobile vs. desktop/tablet.
The Marin Platform will continue to display device targets for the time being, however that setting will default to All Devices once pushed to Microsoft Advertising. Additionally, the Platform will continue to offer the ability to:
Create and manage mobile-preferred ads.
Set campaign-level mobile and tablet bid adjustments via single, multi, and bulk edit.
View the bid adjustment value and device preference in respective grid views.
Gain valuable insights via campaign performance broken down by device in the Devices sub-tabs.
Following are explanations of how this feature will change the Platform: