[DS reporting API] Consolidate reports for campaign and ad group targets

[Piqi Chen]

Targets are criteria for displaying ads based on location, demographics, and other characteristics of a search query. Previously, the DoubleClick Search Reporting API provided separate reports for each type of target:

• adGroupDynamicSearchAdsTarget and negativeAdGroupDynamicSearchAdsTarget
  
• adGroupRemarketingListTarget and negativeAdGroupRemarketingListTarget
  
• campaignLocationTarget
  
• negativeCampaignDynamicSearchAdsTarget
  
• negativeCampaignRemarketingListTarget

To streamline the way you request reports for these targets, and to make it easier to introduce reports for new types of targets, all of these reports have been consolidated into the following new reports:

• campaignTarget and negativeCampaignTarget
  
• adGroupTarget and negativeAdGroupTarget
  

These new reports contain fields for specific types of targets. For example, to report on campaign location targets, request a campaignTarget report and include the locationTargetName field. To report on campaign-level negative remarketing targets, request a negativeCampaignTarget report and include the engineRemarketingList field.

The old reports are still available for backwards compatibility, but we've removed the documentation for them. The new target reports are the preferred way to download performance data about targets.

Learn more about reporting on campaign and ad group targets: https://developers.google.com/doubleclick-search/v2/how-tos/reporting/targets