Amazon Inventory Restock Planner
Plan optimal FBA inventory restock timing and quantities. Know exactly when to reorder, how much to order, and avoid costly stockouts.
How Amazon Inventory Restock Planning Works
Running out of stock on Amazon is one of the most damaging events for FBA sellers. When your listing goes out of stock, you lose sales, your Best Sellers Rank (BSR) drops, and competitors capture your organic keyword positions. The Amazon Restock Planner calculates your optimal reorder point by factoring in your current inventory, daily sales velocity, supplier lead time, shipping transit time, and safety stock buffer. This ensures you always place orders early enough to receive inventory before running out.
The reorder point formula accounts for total lead time, which is the sum of supplier manufacturing time and shipping transit to Amazon fulfillment centers. Adding a safety stock buffer protects against demand spikes, supplier delays, and shipping disruptions that could otherwise cause a stockout.
Understanding Reorder Points and Safety Stock
Your reorder point is the inventory level at which you should place a new purchase order. It equals your daily sales rate multiplied by total lead time, plus safety stock. Safety stock acts as a buffer against uncertainty in both demand and supply chain timing. Most experienced Amazon sellers maintain 7 to 14 days of safety stock, depending on product seasonality and supplier reliability.
Setting safety stock too low risks stockouts during demand spikes or shipping delays. Setting it too high increases storage fees and ties up capital. The ideal balance depends on your product category, historical sales variance, and how quickly your supplier can fulfill rush orders. Use this planner to model different safety stock scenarios before committing.
Avoiding Stockouts and Long-Term Storage Fees
Amazon charges monthly inventory storage fees based on cubic footage, with higher rates during Q4 peak season from October through December. Products stored over 181 days incur aged inventory surcharges that can significantly erode margins. The restock planner helps you order just the right quantity, enough to avoid stockouts while minimizing excess inventory that triggers long-term storage penalties.
The 90-day projection table shows your inventory trajectory week by week, making it easy to spot when stock levels become critical. Use this data to negotiate better terms with suppliers, coordinate shipments, and plan promotional campaigns around your inventory cycles. Consistent restock planning is the foundation of a profitable Amazon FBA business.
Tips for Better Inventory Management
Track your daily sales rate over rolling 30-day and 90-day windows to account for seasonal trends. Factor in upcoming promotions, Lightning Deals, or advertising pushes that may spike demand. Build relationships with backup suppliers to reduce lead time risk. Review your restock plan weekly and adjust for actual sales performance versus projections. Consider using Amazon's restock recommendations alongside this planner for a comprehensive inventory strategy.