Hong has launched a campaign for his client which will run for 60 days.Whenis the earliest recommended time he should begin reviewing performance data toward optimization?

The earliest recommended time to begin reviewing performance data for optimization is 7 days. This allows sufficient time for the campaign to accumulate meaningful data, as Amazon DSP's machine learning algorithms need a certain volume of impressions and conversions to stabilize and provide reliable insights. Reviewing data too early (e.g., 1 day) would lead to decisions based on statistically insignificant information, potentially causing premature and ineffective optimizations. While 10 days would also provide sufficient data, 7 days is generally the earliest practical window to start identifying trends and making initial adjustments without waiting unnecessarily long.