Inventory glossary
What is Supply chain disruption?
Supply chain disruption is any event that stops or delays the flow of goods from supplier to store, such as a factory shutdown, a shipping delay, a customs hold or a supplier going out of business.
For a small Shopify store, one disrupted supplier can mean a best-selling SKU goes out of stock for weeks. You usually cannot fix the disruption itself, but you can reduce its damage by knowing your lead times, keeping some safety stock on key items and reordering before you are down to zero.
Use supply chain disruption as a planning trigger, not just an excuse after the fact. When a supplier warns of a delay, update your expected lead time right away and check which SKUs will run out before the new stock arrives, so you can reorder other items sooner or warn customers.
Example
A candle store orders wax from one supplier with a normal lead time of 2 weeks. The supplier emails to say a port delay will push the next shipment to 6 weeks. The store had 300 units of its best candle in stock, selling 30 a day, which covers 10 days. Since 10 days is far short of 6 weeks (42 days), the store places an emergency order with a backup supplier to cover the gap.
Common mistakes
- Treating every supplier delay as a one-off instead of updating lead time assumptions going forward.
- Relying on a single supplier for a core product with no backup option.
- Waiting for the disruption to hit stock-out before taking any action.
Supply chain disruption and SteadyShelf
SteadyShelf uses each supplier's lead time to set order-by dates, so when a supplier reports a delay you can update that lead time and immediately see which SKUs are now at risk.
SteadyShelf is launching on the Shopify App Store. Join early access to get the install link first.
Related terms
Lead time · Supplier lead time variability · Safety stock · Dual sourcing · Stockout
FAQ
Can supply chain disruption be predicted in advance?
Not reliably. Some risks like known holiday shipping slowdowns can be planned for, but events like factory fires or port strikes usually show up with little warning. The best defense is safety stock and backup suppliers for your core products, not prediction.
Should a small store always keep a backup supplier ready?
For your top selling SKUs, yes, it is worth having at least one backup option even if their price is slightly higher. For slow-moving or low-margin items, the cost of managing a second supplier may not be worth it.
Let SteadyShelf do this math for every SKU
Order-by dates per supplier, seasonal forecasts and draft POs for your Shopify store. $29/month after a 30-day free trial.
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