The company worries that a recent analyst report on these data differences is being reported as a Facebook error. Global sales chief Carolyn Everson: “It’s a challenge for us.” Facebook has acknowledged a series of recent advertising-related data errors.
Why Facebook says its ads can reach more people in the US than live thereMarketing Land
Is Facebook Overstating Its Audience Reach?Variety
Facebook Told Advertisers It Can Reach More Young Adults in America Than Actually ExistSlate Magazine (blog)
MarketWatch -Mashable -AdExchanger -The Register
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