Recently we announced  how ad inventory shouldn’t be tied to a specific device and how inventory in DFP will be able to accommodate any campaign for any device. In this post we discuss how this affects the API. TargetPlatform.ANY  enum (available in v201302 and onwards) and for ad units, the TargetPlatform.WEB  enum.TargetPlatform.MOBILE  or TargetPlatform.WEB and ad units with TargetPlatform.MOBILE through the API. They will work as previously but are deprecated and should not be used. Keep in mind that all new line items and ad units created via the web UI will have unified target platforms.DFP API forums .Vincent Tsao , DFP API Team