A third-party logistics provider, or 3PL, is an outside company that stores your inventory and fulfills orders on your behalf. It handles receiving stock, warehousing, picking, packing, and shipping so you do not have to run your own warehouse. Many Shopify merchants hand off fulfillment to a 3PL once order volume outgrows a spare room or garage.
How it works
You send your inventory to the 3PL’s warehouse (or several, for regional coverage). When an order comes in, the 3PL receives it, usually through a direct Shopify integration, then picks the items, packs them, and ships them out. Most 3PLs sync tracking numbers and inventory counts back to Shopify automatically, so stock levels and fulfillment status stay current without manual work.
Why it matters
Outsourcing fulfillment frees you from leases, warehouse staff, and packing logistics, and it often lowers shipping costs because 3PLs negotiate carrier rates at volume. Splitting inventory across multiple locations also shortens delivery times. The tradeoff is less hands-on control, per-order fees, and dependence on the provider’s accuracy and cutoff times.
How it applies to B2B quoting on Shopify
B2B orders behave differently from retail ones. Quantities are larger, some items ship on pallets or freight rather than parcel, and delivery dates get negotiated as part of the deal. If you quote wholesale or bulk orders, confirm your 3PL can handle freight, custom packaging, and any lead times before you commit to them in a quote. When a quote converts to a real Shopify order (for example, a quote accepted and paid through checkout), it flows into your normal fulfillment pipeline, so the 3PL fulfills it the same way it handles any other order. See the B2B quoting glossary for related terms.