Period comparisons
Compare equivalent reporting windows and isolate changes in spend, clicks and attributed sales. Recent attribution can be incomplete, so avoid treating a partial day as a final result.
KEYXE · Amazon advertising intelligence
Evaluate campaign performance over comparable periods. Bring spend, attributed sales and efficiency into the same review while retaining the report definitions behind each measure.

Compare equivalent reporting windows and isolate changes in spend, clicks and attributed sales. Recent attribution can be incomplete, so avoid treating a partial day as a final result.
Calculate ACoS and ROAS from the selected period totals, not an average of daily ratios. Read CPC with click volume and conversion rate with the relevant denominator.
Summarize the scope, the change and the evidence supporting a proposed review. Keep retail revenue separate from attributed advertising revenue when discussing overall business performance.
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