T60D

 T60D provides a longer, more balanced view of business performance compared to T30D.
Because it spans two months of rolling data, it helps smooth out:

• weekly fluctuations
• short promotional spikes
• temporary stockouts
• short term advertising experiments

Amazon frequently uses T60D to assess medium term performance trends and detect shifts in demand or operational issues that may not be visible in shorter windows.

Where T60D is commonly used:

• Category retail evaluations
• Vendor scorecards
• Inventory turnover analysis
• Pricing and promo impact studies
• Advertising trend analysis across Sponsored Ads
• Forecast validation and replenishment planning

Why T60D matters:

• Captures enough data to show meaningful patterns
• Minimises noise from short term events
• Helps identify whether trends are real or temporary
• Supports planning for seasonal events (e.g., pre Prime Day or pre Q4)

Example:
If today is July 1, the T60D period covers May 2 to July 1.
A vendor reviewing T60D sales and T60D glance views can see whether the recent rise in sales is consistent or driven by a short promotional bump.

Benefits for Sellers and Vendors:

• More reliable demand indicators
• Better forecasting inputs
• Smoothed conversion analysis
• Ability to evaluate the real impact of ads and pricing changes

Benefits for Amazon:

• Stronger category level planning
• Clearer inventory allocation decisions
• Reduced volatility in long term demand forecasting

In short:
T60D (Trailing 60 Days) is the rolling 60 day period Amazon uses to analyse medium term trends in sales, traffic, ads, and inventory performance.