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.

Try it free for 7 daysIncluded in every plan · cancel anytime
Arbitrage Hero inventory manager with COGS, fees and profitability per product

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.

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.

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.