Business Insider | L'Oreal, Walgreen's Look to Measure Effectiveness of Mobile Coupons AdAge.com Because Sparkfly has partnerships with Walgreens and Duane Reade's point-of-sale providers, its able to collect data on exactly what items a consumer bought when redeeming one of its coupons. And because each coupon has a unique barcode, Sparkfly ... Walgreens Is Trying To Find Out If Mobile Coupons Work [THE BRIEF] |
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