3PL stands for third-party logistics. It's a term that covers a broad category of supply chain services — but in the context of eCommerce, it almost always refers to a company that handles warehousing, order fulfilment, and shipping on behalf of online sellers. Here's what 3PL actually means and how it works in practice.
A third-party logistics provider is a company that manages logistics functions on behalf of another business — the "third party" being the logistics provider, separate from the seller (first party) and the customer (second party). In eCommerce, the core 3PL services are: receiving and storing inventory, picking and packing orders, arranging dispatch via courier, and handling returns.
Second-party logistics (2PL) refers to asset-based carriers — the couriers and transport companies that physically move goods. You have a direct relationship with a 2PL when you use DPD or Royal Mail directly. Fourth-party logistics (4PL) refers to supply chain management firms that orchestrate multiple logistics providers on a client's behalf — relevant for large businesses with complex global supply chains.
For most UK eCommerce businesses, 3PL is the relevant model: a single warehouse partner that handles all storage and fulfilment operations.
A typical day at a 3PL fulfilment centre involves: receiving inbound stock deliveries from suppliers, booking goods in through the WMS, processing orders that arrived overnight or through the day, picking items from storage, packing to client specifications, generating shipping labels, handing to courier collection, processing any returns received, and reporting activity to clients through the WMS dashboard.
The core reasons: no fixed cost of warehouse space, equipment, and staff; variable cost that scales with order volumes; access to negotiated carrier rates; professional fulfilment at every volume; and management freedom for the business owner to focus on growth activities rather than warehouse operations.
PackPro is a UK-based 3PL with no monthly minimums and transparent pricing. Learn more about PackPro's 3PL services or view our pricing.