3PL Warehouse Management Software

Run your 3PL like a tech company

Willowcommerce 3PL WMS gives warehouse operators everything they need — multi-tenant client management, automated billing, inbound/outbound workflows, client portals, and AI-powered optimization. Scale from 5 clients to 500 without adding headcount.

Replace spreadsheet billing, manual client management, and disconnected tools with one purpose-built 3PL platform.

10–15%

Shipping Savings

10,000+

SKUs Managed

50,000+

Orders/Day

80%

Less Manual Work

What Is 3PL Warehouse Management Software?

3PL warehouse management software is a specialized WMS designed for third-party logistics providers who store, manage, and fulfill inventory on behalf of multiple clients. Unlike generic warehouse software, 3PL WMS includes multi-tenant isolation, automated client billing, and self-service portals.

For 3PL operators, the biggest challenges are manual billing, client communication overhead, and scaling operations without proportionally scaling staff. Every new client means more spreadsheets, more emails, and more complexity.

Willowcommerce solves this with fully automated billing, dedicated client portals, native marketplace integrations per client, and per-client profitability tracking. It's natively connected to order management, inventory management, warehouse operations and shipping — so every piece of the fulfillment workflow is unified.

Key Features

From receiving to shipping to invoicing — one system for your entire 3PL operation.

Multi-Tenant Client Management

Manage unlimited 3PL clients from one dashboard. Each client gets their own portal with scoped access to their inventory, orders, and billing — fully isolated data.

Automated Billing

Bill clients for storage (per pallet/bin/sqft), pick & pack fees, shipping markups, receiving charges, and custom services. Auto-generate invoices on configurable schedules.

Inbound Receiving

Create ASNs, scan barcodes on arrival, quality-check items, and put-away to locations. Clients can submit inbound requests through their portal.

Location Management

Zone → Aisle → Rack → Shelf → Bin hierarchy. Barcode-scannable locations with directed put-away and pick paths for maximum warehouse efficiency.

Outbound Fulfillment

Pick, pack, and ship orders with wave-based or order-based workflows. Batch label printing with carrier rate shopping across UPS, FedEx, USPS, and DHL.

Client Portal Access

Give each client a branded portal where they can manage store connections, view inventory, track orders, and see real-time billing — without accessing your internal tools.

Shipping Markup & Rate Cards

Set per-client shipping markups, custom rate cards, and carrier preferences. Clients see your rates while you profit on the spread.

Warehouse Analytics

Throughput metrics, labor efficiency, space utilization, and per-client profitability dashboards. Identify bottlenecks and optimize operations.

What Your 3PL Clients Get Access To

Store Connections

Connect Amazon, Shopify, Walmart

Auto-import orders to your warehouse

Sync tracking numbers back

Inventory Visibility

Real-time stock levels

Lot & serial tracking

Low stock alerts

Billing & Invoices

View storage charges

See pick & pack fees

Download invoices & receipts

Who Should Use 3PL Warehouse Software?

Built for every type of fulfillment operation.

eCommerce Fulfillment Centers

Fulfill orders for DTC brands and marketplace sellers with multi-tenant management and automated billing.

B2B Distribution Centers

Handle wholesale fulfillment with pallet management, bulk receiving, and EDI-ready workflows for multiple clients.

Last-Mile Delivery Companies

Manage inbound inventory and outbound delivery with barcode-driven accuracy and route optimization.

Warehouses Going 3PL

Transition from in-house operations to serving external clients with built-in billing and portal tools.

Multi-Location 3PLs

Manage multiple warehouse facilities with unified client management, cross-location transfers, and centralized reporting.

Growing Fulfillment Startups

Start with 5 clients and scale to 500+ without switching platforms or adding operational complexity.

Willowcommerce 3PL WMS vs Generic WMS

See why 3PL operators choose a purpose-built platform over generic warehouse software.

Feature
Willowcommerce 3PL
Generic WMS
Multi-tenant client management
Automated billing (storage, pick/pack, shipping)
Client self-service portals
Client store connections (Amazon, Shopify, etc.)
Barcode-driven pick/pack/ship
Per-client inventory segregation
Shipping markup & rate cards
Native OMS & inventory integration
Per-client profitability analytics
Scales from 5 to 500+ clients
FAQ

Frequently Asked Questions

Everything you need to know about 3PL warehouse management software.

What is 3PL warehouse management software?
3PL warehouse management software is a specialized WMS designed for third-party logistics providers who fulfill orders on behalf of multiple clients. Willowcommerce 3PL WMS provides multi-tenant client management, automated billing, client portals, per-client inventory segregation, and native marketplace integrations — enabling 3PLs to scale operations without adding headcount.
How does multi-tenant client management work?
Willowcommerce creates isolated environments for each 3PL client. Each client's inventory, orders, billing, and store connections are completely separate. Warehouse operators see a unified view for managing all clients, while each client only sees their own data through their dedicated portal.
How does 3PL billing automation work?
Willowcommerce automatically calculates and invoices clients for storage fees (per pallet, bin, or sqft), pick & pack charges, shipping costs with markups, receiving fees, and custom services. Invoices are generated on configurable schedules (weekly, monthly) and can be viewed by clients in their portal.
Can 3PL clients connect their own marketplaces?
Yes. Through the client portal, 3PL clients can connect their Amazon, Walmart, Shopify, eBay, and other marketplace accounts. Orders from these channels flow directly into the warehouse's fulfillment queue, and tracking numbers sync back automatically.
How does Willowcommerce 3PL WMS differ from generic WMS?
Generic WMS handles basic warehouse operations (pick, pack, ship). Willowcommerce 3PL WMS adds everything a 3PL business needs: multi-tenant isolation, automated client billing, client portals, shipping markup management, per-client profitability tracking, and native marketplace integrations for each client.
Does Willowcommerce support shipping markup for 3PLs?
Yes. You can set per-client shipping markups, custom rate cards, and carrier preferences. Clients see your negotiated rates (with markup applied) while you profit on the difference. Rate shopping across UPS, USPS, FedEx, and DHL is built in.
Who should use 3PL warehouse management software?
Any third-party logistics provider, fulfillment center, or warehouse operator that handles inventory and orders for multiple clients. This includes eCommerce fulfillment companies, B2B distribution centers, and warehouses transitioning from in-house to 3PL operations.
Can Willowcommerce scale from a small 3PL to a large operation?
Yes. Willowcommerce supports 3PLs from 5 clients to 500+. The platform handles unlimited warehouses, unlimited SKUs, and high-volume fulfillment with the same architecture — no version upgrades or migrations needed.

Modernize your 3PL warehouse operations

Replace spreadsheets and manual billing with an AI-powered WMS built for 3PL providers.

3PL Challenges We Solve

Generic WMS wasn't built for multi-client fulfillment. Willowcommerce was.

Without Willowcommerce

Manually calculating billing for each client — storage, pick/pack, shipping — in spreadsheets.

With Willowcommerce

Automated billing engine calculates per-client fees and auto-generates invoices on schedule.

Without Willowcommerce

Clients constantly calling for order status, inventory levels, and tracking numbers.

With Willowcommerce

Self-service client portal with real-time visibility — 80% fewer support calls.

Without Willowcommerce

No per-client profitability tracking — can't tell which clients make or lose money.

With Willowcommerce

Per-client P&L dashboards showing storage, labor, shipping, and margin per order.

Without Willowcommerce

Clients can't connect their own marketplace accounts to your fulfillment system.

With Willowcommerce

Client portal supports self-service Amazon, Walmart, Shopify, and eBay connections.

One Platform. Every Module Connected.

Willowcommerce isn't a collection of tools — it's a single system where inventory, orders, warehouse, and shipping work together natively. No middleware. No broken syncs.

Order Management

Centralize orders from 80+ marketplaces. AI routing, batch fulfillment, and up to 88% shipping savings.

Inventory Management

Real-time stock sync across all channels. AI demand forecasting, automated POs, and oversell prevention.

Warehouse Management

Barcode-driven pick/pack/ship. AI slotting optimization, cycle counting, and multi-location support.

Shipping Management

Rate-shop across UPS, USPS, FedEx, DHL. Batch label printing, tracking sync, and carrier analytics.

Multichannel Selling

Sell on Amazon, Walmart, Shopify, TikTok Shop, and 80+ channels from one platform.

Every module shares the same database, the same AI engine, and the same dashboard. See all features →