A backorder is an order placed for a product that is temporarily out of stock but has confirmed incoming supply. In other words, you are selling an item you don’t physically have in your warehouse yet, with the promise to ship it the moment your next shipment arrives. Understanding what a backorder is — and how it differs from being out-of-stock or a pre-order — is essential for any ecommerce seller who wants to keep revenue flowing without frustrating customers.

Inventory turnover days is a metric that tells you, on average, how many days it takes for your business to sell its entire stock.

Think of it like the fresh ingredients in a restaurant’s kitchen. Inventory turnover days shows how quickly you use up all those ingredients to serve dishes before needing to restock.

Imagine trying to run your business without knowing how much money is in your bank account. You wouldn’t, right? A perpetual inventory system brings that same real-time clarity to your products. It’s a live, constantly updated view of your stock, recording every sale, return, and new delivery the moment it happens.

At its core, supply chain logistics management is the practical process of planning, executing, and controlling how things get from point A to point B. It covers the entire journey of goods, services, and information, starting from the raw material supplier all the way to the end customer.

The inventory turnover formula is a key metric that reveals how many times a business sells and replaces its stock within a specific period. It’s calculated by dividing the Cost of Goods Sold (COGS) by the Average Inventory, giving you a clean snapshot of your operational efficiency.

A safety stock calculator is a simple tool that does something incredibly important: it tells you how much extra inventory you need to keep on hand to avoid running out of stock. It’s the difference between guessing and knowing, moving your business from risky gut feelings to a smart, data-driven strategy. Want to skip the formulas and get your number right now? Try our free safety stock calculator tool — just enter your data and get instant results.