You’ve read all of your free items this month. To register, get added benefits and unlimited access to articles, Become a Member. Already a Member? Sign in. Advertising Age Article Abstract Facebook Now Tells Whether Mobile Ads Lead to Desktop Purchases New Measurement Helps Advertisers Attribute Sales to Ads on Specific Devices By Tim Peterson, Published on August 13, 2014 2 Want more Access, Content & Connections? Upgrade to Membership. We are glad you are enjoying Advertising Age. To get uninterrupted access and additional benefits, become a member today. Become a Member Already a member? Log in.