Lara GuevaraSupply Chain expert (Product and Service)

Fix Your Inventory System In Just 20 Minutes

21 Mar 2026 · 1 min

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1:02

In this concise instructional video, Lara Guevara walks viewers through a four‑step process to set up a functional reorder system for their inventory in about 20 minutes. She first explains how to calculate a daily sell‑through rate by taking the total sales of the past 90 days for each of the top five SKUs and dividing by 90. Next, she advises documenting the actual lead time from purchase order to warehouse receipt, then adding a 5‑to‑7‑day buffer to account for delays. The third step shows how to compute a reorder point for each SKU by multiplying the daily rate by the buffered lead time and adding safety stock, and to record this trigger number. Finally, she urges viewers to compare their current inventory levels against these reorder points to identify over‑ordering, and to act immediately. The video ends with a call to share the resulting numbers in the comments.

Chapters

Only 20 minutes to build your reorder system. No excuses, here's how. Step 1: Calculate your sell-through rate. Take your last 90 days of sales, divide by 90, that's your daily rate. Do this for your top 5 SKUs. And step 2: Document your real lead time. Not what your supplier says, what actually happens. PO to warehouse, including delays. Add a buffer of 5 to 7 days. Step 3: Calculate your reorder point. Daily rate times lead time plus safety stock. Write it down for each SKU. That's your trigger. When inventory drops to that number, you order. Step 4: Check out where you stand right now. How does your current inventory compare to your reorder point? Are you above it? Below it? Way above it? Or you're sitting way above your reorder point on most SKUs. You've been overordering. Now you know how much. Do this today, 20 minutes. Share your results in the comments. I want to see your number.