Inventory Management
Definition
Tracking and controlling your product stock levels across warehouses and sales channels. Ensures you have the right products available at the right time.
What is Inventory Management?
Inventory management is the process of tracking your stock: what you have, where it is, what's selling, and what needs reordering. For e-commerce, it means keeping accurate counts across your website, marketplaces, and physical locations.
Poor inventory management means overselling (accepting orders you can't fulfil) or overstocking (tying up cash in unsold products).
Why Inventory Management Matters
Avoid Overselling
Nothing frustrates customers more than ordering something that's out of stock. Accurate inventory prevents this embarrassment.
Prevent Stockouts
Running out of your best sellers means lost sales and disappointed customers who may not return.
Manage Cash Flow
Stock is money sitting on shelves. Good inventory management balances availability against cash tied up in products.
Multi-Channel Accuracy
If you sell on your website, Amazon, and eBay, inventory must sync across all channels in real time.
Key Inventory Concepts
Stock Levels
How many units of each product you have available to sell.
Reorder Points
The stock level that triggers a new purchase order. Calculated based on lead time and sales velocity.
Safety Stock
Extra inventory buffer to protect against demand spikes or supply delays.
Stock Turnover
How quickly inventory sells and gets replaced. Higher turnover usually means better cash efficiency.
Inventory Management Approaches
Spreadsheets
Works for small operations but becomes error-prone as you grow.
Platform Built-In
Shopify, WooCommerce, and other platforms track basic inventory. Adequate for single-channel, simple operations.
Dedicated Systems
Software like TradeGecko, Cin7, or Brightpearl for multi-location, multi-channel businesses with complex needs.
Best Practices
- Count stock regularly to catch discrepancies
- Set reorder alerts for popular products
- Track slow-moving inventory to reduce dead stock
- Sync inventory across all sales channels
- Analyse sales data to improve forecasting