Drop shipping is a logistics model where an online seller takes customer orders but does not store the products in its own warehouse. Instead, the seller sends each order to a supplier or fulfillment partner, who ships the item directly to the customer. This model matters because it lowers the seller’s inventory cost and can make it easier to offer a wide product catalog.
It also shifts many operational risks toward supplier reliability, shipping speed, and accurate data systems.
In a typical drop shipping flow, the customer places an order on an e-commerce store, the seller collects payment, and the order details are transmitted to the supplier warehouse. The supplier picks, packs, and ships the product, while tracking information returns to the seller and customer. Profit depends on the difference between the selling price and the total product, shipping, platform, and service costs.
Good drop shipping systems use real-time inventory feeds, automated order routing, and clear service level agreements to reduce delays and errors.
Key Facts
- Drop shipping flow: Customer order → Seller store → Supplier warehouse → Direct shipment → Customer delivery.
- Seller profit per order = Selling price - Product cost - Shipping cost - Platform fees - Return or support cost.
- Gross margin rate = Gross profit / Selling price.
- Order fulfillment time = Processing time + Picking time + Packing time + Shipping transit time.
- Stockout risk increases when the seller’s website inventory data is not synced with the supplier’s actual stock.
- Drop shipping reduces inventory holding cost, but it often gives the seller less control over packaging, delivery speed, and product quality.
Vocabulary
- Drop Shipping
- A retail fulfillment model in which a seller accepts an order and a supplier ships the product directly to the customer.
- Supplier Warehouse
- A storage and fulfillment location operated by a manufacturer, wholesaler, or logistics partner that holds the products being sold.
- Inventory Sync
- The process of updating product availability data between a supplier system and an online store.
- Order Routing
- The method used to send an order to the best supplier or warehouse based on stock, cost, location, or delivery speed.
- Service Level Agreement
- A formal standard that defines expected performance, such as shipping time, order accuracy, and response time.
Common Mistakes to Avoid
- Ignoring shipping cost in the profit calculation is wrong because drop shipping margins can disappear when freight, packaging, and carrier fees are added.
- Assuming the seller has full inventory control is wrong because the supplier owns and manages the stock, so availability depends on supplier data accuracy.
- Listing products without checking supplier reliability is wrong because slow processing, poor packaging, or frequent stockouts can damage the seller’s customer experience.
- Treating order confirmation as delivery completion is wrong because fulfillment still requires picking, packing, carrier pickup, transit, tracking updates, and possible returns.
Practice Questions
- 1 A seller lists a product for 28 for the item, shipping costs 3, and expected support cost is $1. What is the profit per order?
- 2 An order takes 0.5 day to process, 0.25 day to pick, 0.25 day to pack, and 4 days in transit. What is the total fulfillment time?
- 3 A seller wants to add 200 new products through drop shipping. Explain why real-time inventory sync and supplier performance data are important before listing the products.