A 3PL (third-party logistics provider) is an external logistics company that handles storage, order picking, packing, shipping and returns for a seller, using its own warehouse and its own staff. Fulfillment providers for e-commerce are 3PLs; a 4PL, by contrast, only coordinates and has no infrastructure of its own.
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What is a 3PL?
3PL stands for third-party logistics, meaning logistics carried out by a third party. The first party is the seller, the second the buyer, and the third a company that takes over storage, order processing and shipping on the seller's behalf. The term emerged in the 1980s, when industrial companies began handing entire warehouses to specialists, and today describes every fulfillment provider in e-commerce.
The defining feature of a 3PL is that it performs the logistics physically itself. It operates one or more fulfillment centers, employs the warehouse staff, runs a warehouse management system (WMS) and holds its own contracts with carriers such as DHL, GLS, UPS and DPD. That distinguishes it from a 4PL, which only plans and coordinates.
From 1PL to 5PL: the levels of logistics outsourcing
The number in front of "PL" describes how much logistics a company hands over:
| Level | Who does what | Example in e-commerce |
|---|---|---|
| 1PL | The manufacturer or seller transports and stores everything itself | Founder packs in the spare room and drives to the post office |
| 2PL | A haulier or parcel carrier takes over transport only | Shop packs itself, DHL collects and delivers |
| 3PL | A provider takes over warehouse, pick and pack, shipping and returns | Fulfillment provider with its own warehouse |
| 4PL | An integrator plans and manages the whole chain without its own warehouse | Logistics consultancy managing several 3PLs and carriers |
| 5PL | A provider bundles and automates the supply chains of several companies on one platform | Network platforms, rarely relevant for small and mid-sized brands |
For online sellers up to several hundred thousand parcels a year, the choice is almost always between 2PL (pack yourself, carrier collects) and 3PL (full-service provider). 4PL models only become worthwhile with several warehouse locations or countries.
How working with a 3PL functions in practice
The workflow is standardised. You send goods to the 3PL's warehouse, where they are counted and put away at goods receipt. Your shop or ERP is connected to the provider's WMS through an interface: orders flow in automatically, and stock levels, tracking numbers and return statuses flow back. The 3PL handles order picking, packing, dispatch and returns. Billing is by usage: per inbound pallet, per pallet space and month, per pick, per parcel, per return. You keep purchasing, product range, marketing and customer service.
For a brand based in the UK or overseas, a German 3PL is also the simplest way to hold stock inside the EU. Goods are imported once in bulk, and from then on every order to a German or EU customer is an ordinary parcel shipment. What else has to be planned for that model is described under cross-border fulfillment.
The goods remain your property; the 3PL is the custodian. Check the contract for liability in the event of loss or damage in the warehouse and for the rules on stock differences after a stocktake. The usual solution: the provider is liable up to a defined amount per item or pallet, and your own goods insurance covers anything above that.
Why the 3PL model matters for online sellers
- Variable instead of fixed costs: rent, staff and technology turn into unit costs of typically €2.80 to €5.50 per parcel plus postage (German market figures). In a weak month you pay less, in peak season more, but never for empty space.
- Postage rates: a 3PL pools the volume of many clients and obtains carrier rates that a single shop sending 30 parcels a day will not get.
- Process quality: scan-based picking, defined cut-off times and a service level agreement are standard at a professional 3PL.
- Scaling: a Q4 with five times the summer volume is routine in a 3PL warehouse and a crisis in your own.
The price is dependence. You no longer see your goods every day, which is why you need a client portal with live data and clear performance figures in the contract. Whether the step makes financial sense for your volume is worked through in When to outsource fulfillment.
Ask the 3PL for its actual pick accuracy and throughput times over the past twelve months, not for target values. A provider with a real WMS can pull them from the system within minutes.
How LogYou works as a 3PL
LogYou is a 3PL with its own warehouse in Butzbach (Hesse), its own staff and its own platform LogShip, in which stock and shipments can be viewed live. Shipping is multi-carrier via DHL, GLS, UPS and DPD with a same-day cut-off at 2 pm, and pick accuracy is 99.92 %. Services are described under e-commerce fulfillment and warehousing, and the price components on the pricing page.
Frequently asked questions about 3PL
Is a fulfillment provider the same as a 3PL?
What is the difference between a 3PL and a 4PL?
When do I need a 3PL?
Questions about 3PL for your shop?
We have been shipping parcels for e-commerce brands every day since 2014. Tell us your parcels per day and shop system — we reply with a concrete assessment.