Advertising
ACoS
Advertising Cost of Sales: ad spend divided by the sales Amazon attributes to those ads.
Formula
ACoS is the campaign-level efficiency metric shown in the Amazon Ads console. It answers how much you spent for each euro of sales the ads were credited with.
Because attribution decides the denominator, ACoS can look good while total profitability worsens. For the business as a whole, use TACoS; to know whether a given ACoS is affordable for a given product, use Safe ACoS.
Related terms
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