How to Prevent Stockouts: The $22/Month Solution

A stockout happens when a customer wants to buy a product but it's out of stock. It seems simple — you just can't fulfill an order. But the cost of stockouts goes far beyond that single lost sale.

For ecommerce stores, stockouts are like leaks in a ship. One might not sink you, but enough will.

The True Cost of Stockouts

Let's break down each of these.

1. Lost Immediate Revenue

This is the obvious one: a customer tries to buy, you don't have it, they buy elsewhere. If a product costs $50 and you sell 10 per day, a 3-day stockout costs $1,500 in direct lost revenue.

2. Lost Customer Lifetime Value

This is where stockouts get expensive. Research shows that 65% of customers won't return to a store after a stockout experience. If a customer's average order value is $75 and they would have bought 4 times per year for 5 years, that's $1,500 in lifetime value — per customer.

One stockout that affects 20 customers could cost you $30,000 in future revenue.

3. SEO Ranking Damage

Search engines favor products that are consistently available. Frequent stockouts can hurt your product page rankings, reducing organic traffic even after you restock.

4. Negative Reviews

"I wanted to buy this but they were out of stock" is a common complaint that leads to 1-star reviews. These reviews stay on your product page forever, affecting future conversion rates.

Why Traditional Inventory Management Fails

Most ecommerce stores use one of these approaches:

• Low stock alerts: WooCommerce sends an email when stock hits a threshold — but you're already close to running out.
• Manual checks: You export your inventory and calculate when you'll run out. By the time you do this, it's too late.
• Over-ordering: You keep massive safety stock to avoid stockouts — but this ties up cash in inventory.

All of these are reactive. You only know about stock problems after they exist.

The Solution: Predictive Inventory Intelligence

Here's the key insight: current stock quantity doesn't matter. What matters is how fast you're selling.

A product with 100 units that sells 10 per day will run out in 10 days. A product with 50 units that sells 2 per day will last 25 days. Predictive inventory does this math automatically, for every product, every day.

The $22/Month Solution

DaysOfStock is inventory intelligence for ecommerce stores, starting at $22/month.

For the cost of a team lunch, you get:

• Days of stock calculation for every product in your store
• Sales velocity tracking — not just current quantity, but actual sales rate
• Low stock alerts — get notified before products run out, not after
• Trend analysis — see if your stock situation is improving or declining
• Multi-channel support — Shopify, WooCommerce, and more

The math is simple: prevent one stockout and you've already saved more than a year of DaysOfStock.