Restock Limits
Amazon's cap on how much inventory you can send into FBA.
Definition
Restock limits are caps Amazon places on how much inventory you can send into FBA, applied at the storage-type level (for example standard-size or oversize). They are tied to your sales and your inventory performance, so weak inventory management can directly reduce how much you are allowed to ship in.
Why restock limits matter for an FBA seller
A restock limit is a hard ceiling on growth. It does not matter how strong demand is or how much product your supplier can make; if the limit is reached, you physically cannot send more units into FBA for that storage type until space frees up.
Limits are influenced by your sales history and inventory performance, including IPI. That creates a damaging loop: a stockout lowers performance, tighter limits make it harder to send enough to recover, and the SKU stays out longer. Staying ahead of the limit is far cheaper than digging out of it.
How restock limits connect to your restock decisions
When capacity is constrained, replenishment becomes a prioritization problem, not just a timing one. Limited inbound space should go to the SKUs with the strongest sell-through and the highest stockout cost, not spread evenly or wasted on slow movers.
The durable fix is upstream: keep IPI healthy by clearing aged and excess inventory, resolving stranded units, and maintaining strong sell-through. That protects your limits, which protects your ability to keep the SKUs that actually make money in stock.
Related terms
See it applied in Inventory Hero
Inventory Hero turns these inputs into restock recommendations against your real Amazon SKUs.
Start Free Trial