Facebook to reimburse some advertisers after miscalculating effectiveness data

The company's "conversion lift" tool suffered a glitch that reportedly affected thousands of ads between August 2019 and August 2020.

26 Nov 2020 ... Lucy Handley@lucyhandley ... Facebook will provide a "one-time credit" to affected advertisers. ... using a "gold-standard methodology" that links ads on Facebook's platforms, including Instagram, to business performance, ...

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