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Seasonal Sale Inventory Replenishment

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Your question is Seasonal Sale Inventory Replenishment. Take a moment with it on the right.

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Problem

Scenario

You are preparing inventory for a major seasonal sale on a large beauty and fashion e-commerce platform. Demand spikes sharply during these events, but the challenge is not just forecasting demand — it is coordinating replenishment across brands, warehouses, and inbound operations early enough to avoid both stockouts and expensive last-minute firefighting. Some hero SKUs have long vendor lead times, some imported assortments are less predictable, and the commercial team is still finalizing promotions that could materially change demand. You need to make sure the right inventory is available in the right fulfillment nodes without overbuying slow movers or creating operational congestion during the sale window.

Question

How do you manage inventory replenishment to ensure there is no rush or stockout situation during major seasonal sale events?