Omnichannel Fulfillment: Ship From Store, BOPIS, and DC Models

A customer orders online and wants the item today. It is out of stock at the distribution center, available in 2 stores, and shown as in stock at a third store where the last unit was misplaced weeks ago. Which location should fill the order, and what should the website have promised? Those are the daily decisions behind omnichannel fulfillment.

For scale, e-commerce made up an estimated 17.1% of U.S. retail sales in the second quarter of 2026 (seasonally adjusted, preliminary), according to the Census Bureau. This guide covers the main fulfillment models, the inventory visibility each one needs, and what they change in your stores and warehouses. For how a dedicated online-order site runs, see the ecommerce fulfillment center guide. For restocking stores, see store replenishment.

The main omnichannel fulfillment models

Ship from a distribution or fulfillment center

Online orders are picked and shipped from a central warehouse. It offers the widest assortment and the most efficient picking, but the longest distance to the customer. It also keeps online picking in a building designed for it, which protects store staff time. Store-based models can be added on top of this backbone rather than replacing it.

Ship from store

Stores act as small fulfillment centers. Associates pick online orders from shelves or backroom stock, pack them, and hand them to a parcel carrier or local courier. It puts store inventory to work and shortens delivery distance, but store picking is slower than warehouse picking and competes with shoppers and other store tasks.

Buy online, pick up in store (BOPIS)

The customer orders online and collects in store, at a counter, locker, or curbside. Associates pick and stage the order against a ready-by promise. There is no parcel cost, and pickup can bring customers into the store. In one retailer's data, introducing buy-online, pick-up-in-store was associated with lower online sales but higher store sales and traffic, partly because pickup customers bought additional items in the store.

Ship to store and other variants

In ship to store, orders travel from a distribution center to a store for pickup, often on existing replenishment trucks, so the store does no picking. Other variants include local delivery from stores, drop ship from suppliers, and buy online, return in store.

Split fulfillment

One order is filled from more than one location, such as some items from a distribution center and the rest from a store. It saves sales that would otherwise be lost to stockouts, but each extra shipment adds packaging, postage, and handling. Set clear rules for when splitting is allowed.

Inventory visibility is the foundation

Every omnichannel model depends on knowing what is actually on hand, and where. That is harder in stores than in warehouses. In a widely cited study of nearly 370,000 inventory records from 37 stores of one retailer, 65% of the records were inaccurate. The study dates from 2008 and covers a single retailer, but the drivers it identified, such as store complexity and auditing practices, still apply. Practical steps:

• Promise available-to-promise, not on-hand. Show customers stock net of open orders, items in transit, and a safety buffer for each store.

• Hold store safety stock. Keep back a few units per SKU per store so the last unit on the shelf isn't promised online.

• Count often. Cycle count fast movers and items with frequent online cancellations. See the cycle counting guide and inventory accuracy.

• Set routing rules. A distributed order management system chooses the location for each order based on stock, distance, cost, and capacity. Keep the rules simple enough that store teams understand why orders land where they do.

• Close the loop. Track cancellations, substitutions, and short picks by store and SKU, and feed them back into counts and buffers.