Know what to reorder, when to order it, and how much.

Run out, or pay to store too much

If you plan restocks in a spreadsheet, you know the routine: stock on hand, a sales rate, a supplier lead time, a guess at the season. Get it wrong one way and you run out. Get it wrong the other way and you pay storage on stock that sits.

Restock Radar does that math from the reports you already download, for every product in one store. Every number comes from your reports. Where a value is missing, the dashboard shows n/a.

What you get

You get one dashboard with two pages, in a single file you open in your browser.

• Page one, Current Status, ranks what to reorder first and how much, with a safety buffer (extra stock for swings in sales while an order is on its way) and a confidence level for each product.
• It shows how fast each product sells, how many days your stock lasts at that pace, and any excess stock with its storage cost. With your weekly sales file, it adds an estimate of sales lost to past stockouts and a check on how accurate the forecast has been.
• Amazon's restock alert sits in a column of its own where Amazon raised one, next to the skill's numbers.
• Page two, Forecast, projects 12 months of sales with a likely range, and you can drag sliders to test busier or quieter months.
• It ends with the Reorder Calendar: for each product, the date you're projected to run out, the date to order by and how many to order, buffer included. Change the lead time or weeks of cover on any row and only that row recalculates.

Both pages work from the same daily sales rate, so page one's reorder and the calendar's order agree.

How it works out each number

• Its own daily sales rate per product, weighted toward recent weeks and blended with Amazon's 30-day sales count. It doesn't use Amazon's days-of-supply figure.
• A safety buffer sized to how much each product's sales swing and to how cautious you choose to be: very cautious, balanced or lean.
• Stock already on its way to Amazon counts as supply, and the row is flagged when inbound is 20% or more of it, because shipments can be delayed. Stock in Amazon Warehousing and Distribution (AWD) counts too, so you're never told to reorder what AWD already covers.
• With 12 complete months of sales, the forecast follows your seasonal pattern. With less, it stays at your current rate and says how confident it is.
• With enough weekly history, it tests its forecast on your latest weeks and shows how close it came.

What you need

• A seller account that uses FBA (Amazon stores your stock and ships your orders), and its FBA Inventory report (.csv) from Seller Central. That report alone builds page one from Amazon's own 30-day sales count. You don't need ads or Brand Registry.
• The Detail Page Sales and Traffic by Child Item report, broken out by week, for the forecast, a buffer sized to your own sales and the accuracy check. It's part of a Professional selling plan. Pull 12 months if you can, which adds your seasonal pattern.
• The week-by-week file comes from Seller Utilities, a free extension for Google Chrome. Without it, download the report from Seller Central and tell the skill the dates you picked, and it works from your average daily sales over those dates, with no week-by-week trend, accuracy check or seasonal pattern.
• The AWD inventory report, if you also keep stock in AWD (optional).
• Your answers to the planning questions: lead time (from placing an order to ready to sell at Amazon), how many days of stock to keep, how cautious to be about running out, and your marketplace. The first three have defaults.
• The Claude desktop app with Claude Cowork. You don't need to install anything else, and the first section of the SOP, Before You Start, shows you how to add the skill.

A newly launched product works too. With a few weeks of sales, you get a flat estimate marked low confidence and a cautious buffer.

If you haven't launched a product yet, start with Product Validation, which helps you check a product before you buy inventory.

How a run goes

1. Download the reports, with Seller Central set to English so the column names match.
2. Type /amazon-restock-radar in a Claude Cowork chat and attach them.
3. Answer the planning questions. If your inventory report covers more than one marketplace, the skill asks which one the dashboard is for.
4. Open the dashboard and place your supplier orders from the Reorder Calendar. The skill places no orders itself.

Questions

Amazon already suggests restock quantities. Why use this?

Amazon's alert still shows, in its own column. The skill's numbers come from your own sales rate and the lead time, cover and buffer you choose, and you can change the lead time and cover for any product.

I sell a lot of products. Will it show them all?

With up to 30 products it shows every one. Above that, it tracks your top sellers plus every product at risk.

Where it fits

It stands on its own and sends no alerts. The dashboard is a snapshot of the day you downloaded the reports, so run it again whenever you download fresh ones. More weeks of sales history sharpen the buffer and the seasonal pattern.

In the download

One zip file. It holds the skill package, which you add once in Claude Cowork (Customize, then Add, then Upload Skill), and the SOP as both PDF and Word. The SOP is the manual: what to download from Amazon, how to run the skill, and what to do with the output. Version 24.2.2, updated October 2026.

How to get it

Restock Radar is a free download. Sign up with your email address and we'll email it to you. Like our paid skills, it comes with its step-by-step guide (SOP).