This course was created with the assistance of artificial intelligence, including AI-generated voice narration.

Most inventory courses treat overstock as a supply chain puzzle. This one treats it as what it really is — a cash problem. Every extra day of stock is money frozen on your balance sheet, billing you 20–30% a year whether it sells or not.

You’ll start by learning why inventory is frozen cash, and how a single metric — Days of Inventory (DIO) — connects the language of finance to the levers a planner pulls every week. You’ll calculate exactly how much cash a DIO reduction releases (in our worked example, cutting 31 days frees €6.3M with no extra sales).

Then comes the core skill: never look at the total. You’ll learn to break DIO across four axes — channel, time, category and age — and build a heat map that exposes the exact cell trapping your cash. In a case running through the course, one overstocked cell hidden inside a “normal-looking” 118-day total is what takes the business down to 87 days.

You’ll study the seven costly mistakes that build overstock in the first place — from managing the average, to delaying markdowns, to hiding forecast error with stock — and the specific fix for each. Finally, you’ll sequence everything into a prioritized 90-day plan, quick wins first, structural fixes next.

The course uses clean, practical frameworks and global public examples (fast-fashion, big-box and vertical retailers), not abstract theory. You’ll leave with a repeatable monthly method and a diagnostic toolkit you can apply to your own stock the same week.

What you’ll master: DIO measurement · the KPI bridge · GMROI · the four-axis diagnostic · phasing analysis · aging and terminal stock · markdown timing · OTB discipline · the 90-day roadmap.

Reduce days of stock. Release cash.