Automatic (default) backtests the methods on each product’s recent history and uses the one with the lowest error, choosing only from methods with enough data (8+ weeks). | Method | Best for | Data | |—|—|—| | Recent velocity | steady sellers (30/60/90-day average) | 4+ wks | | Weighted recent | shifting demand | 8+ wks | | Trend | growing/declining | 12+ wks | | Seasonal | Christmas/summer lines | 12+ months | | Trend + seasonal | growth and seasonality | 24+ months | | Slow mover | lumpy, low volume | 12+ wks | | Manual override | promos, launches | none | | Similar SKU | new products | none | | Event calendar | Prime Day, Black Friday, TikTok lives | past events | Set a method at account, supplier, group or product level. Automatic is statistical method selection; the separate AI assistant answers questions about your data.