Know exactly how much inventory belongs at Amazon and how much belongs in reserve.

A free Google Sheets planner for established sellers. Enter your SKUs, sales, and inventory by location, and it shows your weeks of cover, when to send more to Amazon, and when to place your next purchase order.

Vertical mockup of an Overflow Inventory and Replenishment Planner spreadsheet featuring inventory tracking, replenishment planning, and stock management dashboards on a laptop.

Keep control of your inventory

When a container arrives, it’s tempting to send as much of it to Amazon as your capacity limit allows. Over time, that usually means higher storage fees, bumping against capacity limits, aged inventory on slower SKUs, and most of your stock sitting in one place you don’t control.

This planner helps you find the right split for each SKU. You keep enough at Amazon to stay in stock, hold the rest in reserve where you can send it to any channel, and always know when it’s time to move more.

Warehouse workers unloading cardboard shipping boxes from a freight container at a warehouse loading dock.
E-commerce seller dashboard on a computer screen showing sales, orders, inventory, shipments, listings, and performance metrics.
Close-up of organized warehouse shelving with labeled storage bins, inventory boxes, and fulfillment supplies in a modern fulfillment center.

What the planner shows you

For every SKU, the planner calculates:

  • Weeks of cover at Amazon and in reserve, so you can see where your inventory is concentrated
  • Your Amazon reorder point and how many units and cartons to send when you reach it
  • Your supplier reorder point, based on total sales across all your channels and your supplier lead time
  • Reserve pallet positions, so you know how much storage space your reserve inventory needs

A summary tab rolls it all up: total units by location, the share of your on-hand inventory sitting at Amazon, and which SKUs need a shipment or a purchase order right now.

ecommerce seller using spreadsheet to plan inventory replenshments

Who the planner is for

The planner is built for sellers who hold more inventory than any one channel needs at once. That usually means you:

  • Sell on Amazon, plus at least one other channel, like Walmart, Shopify, or eBay
  • Buy in bulk and receive palletized freight, often from overseas
  • Want a repeatable way to plan replenishment instead of deciding shipment by shipment

Better Inventory Planning Starts Here

You are one step away from knowing exactly how much inventory belongs at Amazon and how much belongs in reserve. Just fill out this form and check your email. It’s that simple.