Key takeaways
- Coverage should reflect lead time and variability.
- Stockouts have hidden costs.
- Smaller, more frequent shipments can help.
- Include the inbound pipeline in coverage.
What the charge is meant to do
Amazon wants popular products to be available so customers can buy them. Programs such as low-inventory-level fees can apply when your stock is persistently low relative to your sales, because frequent stockouts hurt customers. Details differ by marketplace and change over time, so check the current rules.
Measure coverage
Compare available stock with recent sales rate to estimate days of supply. Review this for each product weekly. A healthy range balances lead time with sales variability.
The cost of stockouts
Stockouts lose sales, can reduce search visibility and waste advertising spend. Rebuilding momentum after a stockout can take time. Include these costs when deciding how lean to run.
- Lost sales during the stockout
- Wasted advertising on unavailable products
- Ranking and visibility impact
- Customer experience
Replenish earlier and smaller
Shipping smaller quantities more often can keep coverage steady while limiting storage. This increases the number of shipments and inbound costs, so compare the totals. Consider carrier options that match the frequency.
Use safety stock
Safety stock covers variability in demand and lead time. Calculate it for each product based on how unpredictable sales and supply are, and review it as conditions change.
Watch inbound pipeline
Include units in transit and those being received when calculating coverage. Delays at receiving can create gaps even when you have shipped on time. Track inbound status.
Coordinate with advertising
When stock is low, reduce advertising on affected products to avoid wasted spend and to protect remaining units for the best-converting traffic. Increase it again once stock returns.
A worked example
A seller monitors a fast-moving product and notices coverage falling toward the lead time. They send an earlier, smaller shipment by faster transport and reduce advertising temporarily. The stockout is avoided, and they adjust their reorder point to prevent a repeat.
Common mistakes
Common mistakes include ignoring variability, forgetting inbound delays and cutting storage so tightly that stockouts occur. Review reorder points quarterly.
A weekly coverage review
Each week, list the products with the lowest days of supply and compare them with their lead times and the stock already in transit. For each at-risk product, decide whether to reorder, ship by a faster method, reduce advertising or accept a short gap. Record the decision and the reason.
Pair the review with a look at products that have far more stock than they need, so you can move working capital from overstocked lines to those at risk of running out.
Your next three steps
Balance coverage and cost for your top products.
- Calculate days of supply including inbound units.
- Compare coverage with lead time for each product.
- Move working capital from overstocked lines to at-risk ones.
Key terms
A few terms used above, in plain language.
- Days of supply: how long current stock will last at recent sales.
- Safety stock: extra inventory covering uncertainty.
- Pipeline: units ordered or in transit but not yet sellable.
Frequently asked questions
Does every marketplace have low inventory charges?
Not necessarily. Check the fee schedule for each marketplace.
How much safety stock should I hold?
Calculate it per product from demand and lead-time variability.
This guide is general information. Amazon's fees, policies and program rules change and vary by marketplace, so confirm current details in Seller Central and, for tax or legal questions, with a qualified adviser.