Campaigns created through the API are equivalent to
All features campaigns. There is not a 1-1 mapping between the sub-types in the AdWords UI and the API, since the AdWords UI sub-types are mostly used for controlling which AdWords UI elements are available when working with a campaign in the UI. The
advertisingChannelSubType simply provides an additional refinement over
advertisingChannelType wh
en specifying the primary serving target for ads within this campaign.
Umesh, AdWords API Team.