Visit www.millennialmedia.com/advertise/campaign-successes for more SUMMARY Harvester Leverages Apple Passbook Functionality to O?er Innovative Mobile Voucher Campaign RESUL TS The campaign drove issuance of almost 16,000 vouchers in two weeks Almost 700 vouchers were redeemed during course of the campaign The overall campaign CP A achieved was £3.41 Compelling Mobile O?er: Harvester and their technology partner Eagle Eye created a campaign t

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