Conversions API: Attribute offline conversions to PLAs: When a customer clicks a product listing ad and lands on an advertiser's site, DoubleClick Search passes a clickId to the advertiser's landing page to uniquely identify the visit. You can use the DS API to pass this clickId back to DS and attribute an offline conversion to the visit. DS will then attribute the offline conversion to the ad—either text ad or product listing ad (PLA)—and corresponding keyword, product target, or product group that initiated the visit.
Reporting API: Report on product groups in Shopping campaigns: Instead of keywords or product targets, Shopping campaigns use product groups to determine when items in your Merchant Center account appear on a search results page. You can now use the DS API to send an asynchronous request for a productGroup report. The report lists performance metrics and settings for each product group in the scope that you specify in the request.