Lead Time

Lead time is the total time between placing a purchase order with a supplier and receiving the goods at your warehouse. This critical metric encompasses manufacturing time, processing, packaging, and shipping duration. Understanding and managing lead time is essential for maintaining optimal inventory levels and meeting customer demand without stockouts or excess inventory.

Why it matters for e-commerce brands

For Shopify and DTC merchants, lead time directly impacts inventory planning and cash flow management. Longer lead times require ordering inventory further in advance, tying up capital and increasing the risk of overstocking if demand shifts. Accurate lead time knowledge helps e-commerce brands determine when to reorder products, set realistic customer expectations for product availability, and avoid costly stockouts during peak sales periods.

Example

A Shopify merchant selling skincare products orders from a manufacturer in South Korea with a 45-day lead time. This includes 10 days for production, 5 days for quality control and packaging, and 30 days for ocean freight to their Los Angeles warehouse. Knowing this 45-day window, the merchant must place their reorder when inventory drops to their reorder point (typically 6-8 weeks of stock) to ensure new products arrive before selling out. If they're planning a promotional campaign for Black Friday, they need to place their order by early October to guarantee stock availability.

Related terms

• Reorder point
• Safety stock
• Order cycle time
• Supplier lead time variability
• Economic order quantity (EOQ)