Amazon Restock Limits vs. Storage Limits: What Changed

Amazon's FBA storage management system has evolved over time. Previously, Amazon used both storage limits (total cubic feet in warehouses) and restock limits (how much you could send in a given period separately from what was already there). In 2023, Amazon consolidated these into a single storage limit metric, eliminating the separate restock limit system. Under the current system, your storage limit is the total amount of inventory you can have stored at Amazon fulfillment centers at any time — it is not a limit on what you can send in, but a ceiling on what can be present at any moment. This means you can replenish freely as long as you are below your storage limit, but you need to maintain that balance by ensuring inventory that has sold is cleared to make room for new inbound shipments. The practical implication: high-velocity products manage themselves (they sell quickly and free up space automatically). The management burden falls on slower-moving products that accumulate in warehouses. Sellers who understand this dynamic structure their catalogs to have a high proportion of fast-moving products (improving IPI naturally) rather than a long tail of slow movers using up storage allocation.