Inventory Management
Inventory management is the process of tracking, ordering, storing and selling stock so you have the right products in the right quantity at the right time.
What is Inventory Management?
Inventory management is the process of tracking how much stock you have, where it is, when to reorder and how it moves through sales, so you avoid both stockouts and excess stock. In e-commerce it also means showing correct availability on every channel you sell on. It covers stock counts per location, reorder points, purchase orders, receiving goods, reserving stock for orders and handling returns. It differs from warehouse management, which focuses on the physical work inside the warehouse, and from product information management, which handles the data that describes the product. Inventory systems usually own stock levels, while the PIM owns descriptions and attributes. A key measure is how fast stock sells; the inventory turnover calculator works it out.
Why Inventory Management matters for e-commerce
Selling a product you do not have leads to cancelled orders, unhappy customers and, on marketplaces, penalties. Holding too much stock ties up cash and storage and often ends in markdowns. Online sellers face an extra challenge: the same stock is sold on several channels at once. Good inventory management keeps one stock figure per product and location and shares it with every channel, so availability is right wherever the customer shops.
Examples of Inventory Management
- 1Method: Reorder point, Example: reorder when stock drops below 20 units, the sales of two weeks of lead time
- 2Method: ABC analysis, Example: count the fast-selling A items weekly and slow C items quarterly
- 3Method: Safety stock, Example: keep extra units of a bestseller before a holiday peak
- 4Method: Channel buffer, Example: show stock minus 2 units on a marketplace to avoid overselling
How WISEPIM Helps
- Product families and variants keep sizes and colors as separate SKUs, so each variant can carry its own stock figure in your shop or ERP.
- Platform connections send product data to Shopify, WooCommerce, Magento 2 and other supported platforms, where stock is managed.
- Analytics includes a stockout loss view, so you can see the sales you miss when products are out of stock.
- Free tools such as the inventory turnover and stockout loss calculators help you check your stock decisions.
Common mistakes with Inventory Management
- Keeping separate stock counts per channel, so one channel sells stock another already sold.
- Ordering on gut feeling instead of sales data and lead times.
- Ignoring returns, so returned items sit in the warehouse without being restocked.
- Treating every product the same instead of giving bestsellers more attention.
Tips for Inventory Management
- Choose one system as the owner of stock levels and connect every channel to it.
- Set reorder points per product based on sales speed and supplier lead time.
- Count your fastest sellers more often than the rest.
- Check inventory turnover each quarter to spot slow stock early.
Trends around Inventory Management
- Demand forecasting with AI helps set reorder points per product and season.
- Retailers use store stock for online orders through ship from store and click and collect.
- More sellers use a single stock pool across channels with small buffers per marketplace.
Tools for Inventory Management
- WISEPIM (product data, variants and platform connections; stock stays in your shop or ERP)
- Odoo
- Oracle NetSuite
- Cin7
- Picqer
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