Flieber Blog

Most ecommerce brands believe they have supply chain visibility.

What Are Demand Planning Models? (Quick Answer)

Demand planning models are frameworks used to predict future customer demand based on historical data, trends, and external variables. These models help ecommerce brands make better decisions around inventory, purchasing, and supply chain operations.

If you’re running an ecommerce brand in the $5M–$100M range—especially across Shopify, Amazon, and wholesale—demand planning stops being optional.

Every business that moves physical goods eventually hits the same wall. SKUs multiply, channels expand, warehouses get added, and the spreadsheet that used to work starts failing in ways that are hard to explain and expensive to fix. Inventory management solutions exist to solve this problem.Whoever the category covers an enormous range of software, from simple stock trackers to full supply chain planning platforms. Choosing the wrong one doesn't just waste the budget. It leaves the actual problem unsolved.

This guide breaks down what inventory...

Running a warehouse without a proper inventory management system is like navigating a city without a map. You'll eventually get somewhere, but you'll waste time, miss turns, and run out of fuel at the worst moments. A warehouse inventory management system is the operational backbone that tells you exactly what stock you have, where it is, and what needs to happen next.

This guide covers everything you need to know to evaluate, compare, and choose the right solution for your operation.

Every product you sell either moves your business closer to profit, or quietly drains it. Contribution margin is the metric that tells you which is which. If you've ever wondered what is contribution margin and why finance teams obsess over it, this guide breaks it down with plain language, real formulas, and ecommerce examples you can apply today.

Most brands implement a warehouse stock management system and stop there. They get real-time stock levels, barcode scanning, accurate pick rates and assume the job is done. It 's not.

Managing stock in a warehouse is one problem. Managing stock across your business, channels, warehouses, 3PLs, and supplier lead times. This is a different problem entirely. And most warehouse stock management systems were only built to solve the first one.

You finally got your warehouse inventory tracking system in place. And honestly? It's working. Stock accuracy is way up. Picking errors? Down. Your team has stopped arguing about whether that SKU is actually on the shelf or not. But…

Your best sellers still run out when you least expect it. That pile of dead inventory that's been sitting there for months? Still there, burning cash. And you're still staring at spreadsheets for hours every week, trying to figure out what to buy next.

Here's the thing: tracking was never the problem. It's planning. And no...

If you run your store on Shopify, you probably feel like your Shopify inventory management system keeps your inventory under control, until you hit yet another stockout on a hero product while boxes of slow movers sit untouched on a shelf. Shopify tells you how much stock you have and where it is, but it does not tell you how much you will need next month, how to split that stock across channels, or when to reorder so you stop bouncing between stockouts and overstock.

This article starts from a simple question: If some of your SKUs look profitable on Amazon, why does your bank account feel like they aren’t? The short answer is that Amazon fees and ad spend rarely show up in the same place where you celebrate “profitable” products, so revenue and ROAS tell a much nicer story than your contribution margin per SKU, and that gap between Amazon fees and contribution margin is exactly what this article is about.