Arbitrage Hero tools
Inventory manager: know your real margins
Track cost of goods with FIFO, see profitability per product over time, catch restock moments before you run out - all in the same tool you source with.
What you get
COGS with FIFO
Track your cost of goods the accurate way - first-in, first-out - so margins reflect what you actually paid for each batch.
Profitability over time
Analyze how each product performs across different time periods and double down on the ones that actually pay.
Restock recommendations
Avoid running out of stock by following restock suggestions built on your real sales trends.
Every fee accounted
See Amazon fees per product, so the profit you see is the profit you keep.
Spreadsheets are where FBA margins go to die: purchase prices from three months ago, fees that changed since, sales you forgot to log. The inventory manager keeps all of it in one place and up to date - what you bought, what it cost, what it sells for and what Amazon charges along the way.
Because it lives next to your sourcing tools, the loop closes naturally: source a product, buy it, then watch its real profitability - and let restock recommendations tell you when to reorder.
FIFO is the detail that keeps the numbers honest. Buy the same product at one price in March and a higher one in May, and a June sale must be costed against the batch it actually came from - first-in, first-out - or the margin is fiction. The inventory manager applies the real batch cost to every sale, with Amazon's per-product fees alongside.
It is included in every plan at no extra cost, and it takes products however they arrived - an online arbitrage find, a wholesale line or something you sourced yourself. Restock recommendations build on your real sales trends, so the reorder signal comes before the stockout, not after.
Good to know
Frequently Asked Questions
How does COGS tracking work?＋
Purchases are tracked per batch and costs are applied FIFO (first-in, first-out), so profit per sale reflects the actual purchase price of the units sold.
Why does FIFO matter for FBA margins?＋
Because batches cost different amounts. FIFO costs each sale against the batch it actually came from, so profit per sale reflects what you really paid - not an average that hides the losers.
Does it work for wholesale and arbitrage products alike?＋
Yes - whatever the sourcing route, the product lands in the same inventory with the same COGS tracking, fees and restock recommendations.
Will it warn me before I run out of stock?＋
Yes - restock recommendations are based on your sales trends, so you can reorder before stockouts cost you the Buy Box and rank.
Is the inventory manager an extra subscription?＋
No, it's included in every Arbitrage Hero plan at no extra cost.
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