Ecommerce growth creates more orders, more channels, more locations, and more return complexity. A third-party logistics (3PL) partner helps manage fulfillment as you scale.
NTT Data’s 2025 report found 87% of shippers have increased their use of outsource logistics. They also report success with this approach: 89% of brands think relationships with their 3PLs are successful, and 82% believe those 3PL partnerships have contributed to a better customer experience.
On Shopify, merchants can connect with fulfillment partners via Shopify Fulfillment Network and manage orders from the same admin instead of treating fulfillment as an entirely separate workflow.
This guide shares when to outsource logistics, how to choose an ecommerce 3PL partner, and how Shopify fits in.
What is a 3PL in ecommerce?
A 3PL is an external partner that stores inventory and handles some combination of receiving, warehousing, picking, packing, shipping, tracking, and returns. Ecommerce 3PLs often add software integrations, distributed inventory support, SLA reporting, and returns workflows.
3PL responsibilities include:
- Inventory storage
- Order picking and packing
- Carrier selection and shipping
- Order tracking visibility
- Returns processing
- Reporting and integrations
Warehousing vs. fulfillment vs. logistics management in 3PL ecommerce
Warehousing, fulfillment, and logistics management can be bundled into a single 3PL contract, but they describe distinct functions:
- Warehousing is the physical storage of inventory: receiving goods, organizing them in a facility, and managing inventory levels.
- Fulfillment is what happens when an order is placed: picking items from storage, packing them, generating shipping labels, and handing them to a shipping carrier.
- Logistics management is the broader operational layer that coordinates how inventory moves across the entire supply chain, including carrier selection, route optimization, returns flow, and demand forecasting.
Ecommerce brands can outsource warehousing without touching fulfillment, or outsource both while managing logistics strategy in-house. This hybrid approach lets you lean on a 3PL’s deep knowledge to fill gaps in your own team without outsourcing the entire process.
How ecommerce 3PL works
Ecommerce 3PL partners follow this process when fulfilling customer orders:
- Receiving inventory. A brand ships inventory to a 3PL. Each SKU gets logged into the warehouse management system (WMS) and assigned a storage location. Inventory sits in assigned bin, shelf, or pallet locations until an order triggers a pick.
- Order routing. Order details are pushed from the ecommerce platform to the 3PL’s WMS. Carrier selection rules are applied at this stage, choosing the cheapest or fastest carrier based on the destination zone, package dimensions, and the retailer’s SLA requirements.
- Pick, pack, and ship. The 3PL’s warehouse team picks, packs, and applies a shipping label. The carrier scans the package at collection, triggering a tracking event that flows back to the merchant’s platform and to the customer as a shipment notification.
Shopify’s unified data model keeps inventory, order, and ecommerce fulfillment data in sync across every sales channel, so order details reach the 3PL the moment a purchase is confirmed, without manual exports or middleware lag.
Other services many ecommerce 3PLs offer
Many 3PL partners offer complementary logistics services (which may come at an additional cost), such as:
- Kitting and bundling
- Subscription fulfillment
- Lot tracking or expiration tracking
- Branded packaging
- Returns handling
- Cross-border support
- Carrier negotiation
- Freight coordination
- Business-to-business (B2B) and direct-to-consumer (DTC) fulfillment from one network
Heatonist, for example, previously worked with two separate 3PLs, but both resulted in picking errors and inadequate protective packaging that led to customer complaints.
After joining Shopify Fulfillment Network, Heatonist was able to guarantee three-day shipping for the first time, with fulfillment centers in Pennsylvania, Texas, and Nevada. “We’ve gone from one fulfillment center to having centers all across the country,” says Heatonist’s founder Noah Chaimberg. “That’s a big change for us.”
Heatonist also worked with Shopify Fulfillment Network to define packaging standards to protect fragile glass bottles during shipping. “We sell a premium product, and a lot of the way that people perceive taste and flavor happens in the mind,” Noah says. “We want to prepare someone’s mind to have a great tasting experience from the moment they see the package on the doorstep.”
Benefits of using a 3PL for ecommerce
Outsourcing to a third-party logistics provider opens the door to:
- Faster shipping and broader geographic reach. Almost half of shoppers expect online orders to arrive within two days. EasyStandard, for example, used Shopify Fulfillment Network to strategically distribute inventory close to customer demand, reaching 93% on-time delivery and a 19% increase in website conversions.
- Lower in-house labor burden. Warehouse labor costs average $15 to $22 per hour, plus benefits. Outsourcing lessens that burden so your internal team can focus on business growth.
- Reduced warehouse overhead. Warehouse rent alone averaged $10.18 per square foot, as of Q4 2025. Outsourcing to a 3PL lets you lean on their existing distribution centers without committing to fixed overheads for owned warehouses.
- Better ability to handle peaks. 3PLs can commit to SLAs to ensure packages are shipped on time, even during peak season. Flexport, for example, processed 71% more orders and 92% more units during the 2025 BFCM weekend. More than one million shoppers received an order fulfilled by the 3PL.
- Returns management support. Online returns are projected at 19.3% of online sales in 2025. A 3PL can receive, inspect, and make returned inventory resellable without using your own resources.
When should an ecommerce business use a 3PL?
The following signs may indicate it’s time to consider partnering with a 3PL:
- Orders are rising faster than the team can pack accurately
- Shipping times are inconsistent or too slow
- Warehouse space is limited
- Seasonal peaks break current fulfillment operations
- You’re operating multiple sales channels, geographies, or a large store footprint
- Returns volume is becoming a burden
Hybrid fulfillment as a starting point
The breakeven point for outsourcing fulfillment falls between 1,000 and 3,000 orders per month, according to Red Stag Fulfillment’s analysis. If you’re lingering in that threshold, consider hybrid fulfillment instead of full outsourcing.
Hybrid fulfillment lets you use owned warehouses, distribution centers, retail stores, and 3PLs together. For example, you might use:
- Owned warehouses for large, fragile, or products with custom packaging options
- Retail stores for online orders within a five-mile radius of your store
- 3PLs for everything else
Unified data is a prerequisite for hybrid fulfillment to work. A leading independent research firm found Shopify POS delivers an additional 5% GMV uplift on average through integrated inventory management, improved headquarters productivity, and enhanced marketing effectiveness.
Allbirds, for example, uses Shopify POS’s ship-from-store feature to enable 31 retail stores to fulfill demand. This move reduced shipping and labor costs associated with end-of-season warehouse returns.
“Stores love it, since over 50% of the product we ship from the store is generally slower moving inventory, which offers them back that space so they can sell more,” says Micah Nelson, Allbirds’s director of product management.
How to choose the right 3PL for ecommerce
If you’ve decided to work with a 3PL ecommerce partner, compare them against three key factors: operational fit, technology fit, and cost fit.
Operational fit
Stress-test your shortlisted 3PL providers against the operational realities of your product catalog. A provider optimized for apparel replenishment may struggle with fragile glass bottles. One built for DTC parcels may have no B2B EDI capability.
Pay attention to:
- Product type compatibility. Fragile goods, temperature-sensitive items, products with expiration dates, regulated goods, and hazmat categories require specific handling infrastructure and certifications. Ask whether the partner has the physical setup to handle those products.
- Multichannel fulfillment. Check if a 3PL can fulfill from the same inventory pool across every sales channel, including your online store, marketplace listings, wholesale platforms, social storefronts, and retail stores.
- SKU count and velocity. Ask how the 3PL manages slow movers, how they handle SKU proliferation as your business grows, and whether their WMS supports lot tracking or expiration-date management if your products require it.
- Order volume and peak capacity. Can they perform at triple your normal volume during Black Friday, a product launch, or a flash sale? Ask for specific peak season data: what order volumes did they process, what were same-day fulfillment rates, and how did accuracy hold up? Get SLA commitments in writing.
- Bundling, kitting, and subscription fulfillment. Subscription fulfillment adds a scheduling layer. Confirm that the 3PL supports kitting in-house and understand how it’s priced.
- B2B and DTC fulfillment. B2B orders carry different requirements: pallet-level shipments, retailer compliance labels, EDI, and specific routing guides. If you’re outsourcing both B2B and DTC, check they can handle these differences.
- Geographic coverage. If you need global fulfillment,ask how many nodes the provider operates, where they’re located relative to your customers, and whether distributed inventory is included or requires a separate arrangement.
- Reverse logistics operations. How are returned items inspected, how quickly are sellable units restocked, what happens to unsellable inventory, and how are returns logged back into your inventory system?
- Exception management and customer service. When an order is lost, mislabeled, or delayed, how does the 3PL communicate? Look for SLA commitments on exception response times and a dedicated account contact.
Technology fit
Retailers who can’t see live inventory counts, can’t trust order status data, or have to manually reconcile shipment records across systems are absorbing operational risk that compounds at scale.
Artificial intelligence plays a big role here: Extensiv’s 2025 study found roughly one-third of 3PL partners planned AI implementation in the coming year, up from 25% in 2024. AI is having the clearest impact on location optimization, demand forecasting, and pick efficiency.
Before signing with a new ecommerce 3PL partner, compare them against this tech checklist:
- Native Shopify integration. Does the 3PL have a certified app in the Shopify App Store, or does the connection run through a third-party middleware layer? If the latter, clarify who owns the connection when it breaks and what the error-handling process looks like.
- Real-time inventory visibility. Are inventory counts updated in Shopify as items are received, picked, and returned, or on a batch schedule?
- Order status sync. Does order fulfillment status and tracking information flow back into Shopify automatically, triggering the customer-facing shipping notification? Or does your team have to pull this data manually?
- Returns visibility. When a return arrives at the 3PL, how quickly is it logged, and does that update flow back into your inventory management system in real time?
- Reporting and SLA dashboards. Does the 3PL provide a live dashboard covering order accuracy, fulfillment speed, shipping performance by carrier and zone, and cost per order?
- API quality. If you run any custom logic—order routing rules, inventory allocation, channel prioritization—does the 3PL have a well-documented API? Ask for documentation before you commit.
- Warehouse automation support. Shopify Flow, for example, allows you to build rules that fire on fulfillment events—like flagging delayed orders, adjusting inventory thresholds, or routing specific SKUs to specific locations—without custom code.
Shopify POS connects physical store inventory to the same system, so a retail location can serve as a fulfillment node without requiring a separate integration.
Mejuri operationalized this directly. Rather than fulfilling all UK customer orders from a central warehouse, Mejuri used Shopify’s native order routing to ship UK orders directly from London to cut lead times from up to nine days to one or two, and reduce monthly shipping costs by over $100,000.
The approach proved out at scale: The team expanded ship-from-store to five North American locations with plans to roll it out across most of their 35 global stores.
Cost fit
“Cheap fulfillment” can become expensive if the fee structure is misunderstood. Extensiv’s 2025 report found a 7% increase in 3PLs citing uncaptured charges as their biggest challenge.
Before committing to an ecommerce 3PL partner, calculate the total cost of ownership, including:
- Receiving fees
- Storage fees
- Pick and pack fees
- Packaging surcharges
- Shipping markups
- Returns fees
- Account management fees
- Minimums and peak surcharges
Take a representative month of orders, including a mix of single-item, multi-item, and returned orders. Apply the full fee schedule to every transaction. Then add storage space costs based on your current inventory footprint and projected turn rate.
Also account for fulfillment cost savings when you outsource: warehouse rent, utilities, labor, equipment, and the management time currently spent on fulfillment. A 3PL that costs more per order on paper can still reduce total fulfillment spend once fixed overhead is removed from the equation.
Combine this with platform-level gains such as better inventory availability, conversion lift, and reduced manual overhead. This shows the bigger picture to balance TCO against ROI.
3PL ecommerce FAQ
What does a 3PL do for an ecommerce business?
A 3PL stores an ecommerce business’s inventory, picks orders when they come in, ships them to customers, and handles returns.
When should a growing brand switch from self-fulfillment to a 3PL?
A brand should consider switching from self-fulfillment to a 3PL when:
- Fulfillment consumes too much time internally
- Shipping costs per order are higher than a 3PL’s negotiated shipping rates
- You can’t meet customers’ delivery expectations
- You’re hitting storage constraints
- Fulfillment delays happen during peak season
- Order accuracy is slipping or error-related returns happen
- You’re selling across multiple channels or geographies and can’t get inventory close enough to customers
- A new sales channel, wholesale account, or international market requires fulfillment infrastructure you don’t have in-house
How do you choose the best 3PL for ecommerce?
To choose the best 3PL for ecommerce, evaluate options against:
- Operational fit. Whether the provider can handle your product type, SKU complexity, order volume, peak capacity, and any special requirements like kitting, returns, or B2B fulfillment.
- Technology fit. Whether the 3PL integrates cleanly with your ecommerce platform, syncs inventory and order status in real time, and gives you self-serve visibility into fulfillment performance and SLAs.
- Cost fit. Whether the total fee structure—receiving, storage, pick-and-pack, returns, minimums, and peak surcharges—makes it worth outsourcing.
Is a 3PL worth it for small ecommerce businesses?
Whether a 3PL is worth it depends on how many orders you fulfill, the internal cost of order processing, the fulfillment and delivery speeds, and any errors you make during the fulfillment process.
Can Shopify work with a 3PL?
The Shopify Fulfillment Network connects your business with 3PLs like Flexport, ShipBob, and Shipfusion that let you outsource fulfillment. These partners handle storage, picking, packing, and shipping directly within the Shopify admin.
What is the difference between a 3PL and a fulfillment center?
A fulfillment center is a physical warehouse where inventory is stored and orders are processed. A 3PL is a company that operates one or more fulfillment centers and manages the broader logistics on your behalf, including carrier relationships, returns, and inventory tracking.
