Inventory Is Your Biggest Asset — and Your Biggest Risk
For most ecommerce brands, inventory represents 50-70% of total assets. Get it wrong and you're either sitting on dead stock eating into your margins, or running out of your best sellers and leaving revenue on the table.
Here's how to get it right.
1. Use the ABC Analysis Method
Not all SKUs are created equal. ABC analysis categorizes your inventory by revenue impact:
A items (top 20%): Your best sellers. They generate ~80% of revenue. Keep tight safety stock and reorder frequently.
B items (next 30%): Moderate sellers. Balanced reorder frequency.
C items (bottom 50%): Slow movers. Order less frequently, consider discontinuing if they're not profitable.
This framework helps you focus your attention and capital where it matters most.
2. Set Reorder Points and Safety Stock
A reorder point is the inventory level that triggers a new purchase order. The formula is simple:
Reorder Point = (Average Daily Sales × Lead Time in Days) + Safety Stock
Safety stock is your buffer against unexpected demand spikes or supplier delays. A good starting point is 1-2 weeks of average sales as safety stock for A items.
Pro tip: A good WMS will calculate and automate reorder alerts for you. At Asfar, our system monitors your levels and notifies you before you get dangerously low.
3. Implement First-In, First-Out (FIFO)
FIFO ensures that the oldest inventory gets shipped first. This is especially critical for:
Products with expiration dates (supplements, food, beauty)
Seasonal items
Any product with lot numbers or batch codes
Even if your products don't expire, FIFO prevents you from accumulating old stock that may become harder to sell over time.
4. Conduct Regular Cycle Counts
Don't wait for an annual physical inventory count to discover discrepancies. Cycle counting means counting a small subset of inventory on a regular schedule (daily or weekly).
Benefits:
Catches errors early before they compound
Doesn't disrupt warehouse operations (unlike full counts)
Keeps your inventory data accurate for sales channels
Reduces shrinkage and loss
Your 3PL should be conducting regular cycle counts and reporting any discrepancies to you proactively.
5. Sync Inventory Across All Sales Channels
If you sell on Shopify, Amazon, and Walmart, your inventory needs to be synced in real time. Nothing kills customer trust faster than a "Sorry, this item is out of stock" email after they've already paid.
Multi-channel sync requires:
A central inventory management system
Real-time API connections to each sales channel
Automatic stock level updates when orders are placed or received
Buffer stock settings for high-demand channels
6. Track Key Inventory Metrics
What gets measured gets managed. Here are the KPIs every brand should track:
Inventory Turnover Rate: How many times you sell through your average inventory per year. Higher is better (typically 4-8x for healthy ecommerce brands).
Days of Supply: How many days your current stock will last at current sell-through rates.
Stockout Rate: Percentage of time an SKU is unavailable. Target: under 2%.
Carrying Cost: The total cost of holding inventory (storage, insurance, opportunity cost). Typically 20-30% of inventory value annually.
7. Plan for Seasonality and Promotions
Don't get caught off-guard by your own success. If you're running a Black Friday sale or launching a new product, plan your inventory weeks or months in advance.
Seasonality planning checklist:
Review last year's sales data for the same period
Factor in growth rate
Place POs with suppliers early (especially if manufacturing overseas)
Coordinate with your 3PL on expected inbound volumes
Set up temporary overflow storage if needed
Work Smarter, Not Harder
Great inventory management is the difference between a brand that scales profitably and one that drowns in cash flow problems. The good news is you don't have to figure this all out alone.
At Asfar Distribution, inventory management is built into our service. Our WMS tracks every unit, syncs across your channels, and gives you real-time visibility so you always know exactly where you stand.
Need better inventory management? Asfar Distribution provides real-time WMS tracking, lot control, and automated reorder alerts from our 40,000+ sqft Houston facility. Learn about our warehouse management or request a quote.