Fulfillment Software & Technology

One platform from order to delivery.

Cart.com's proprietary WMS, OMS, and TMS run as one system, not bolted-together third-party software. Monitor inventory, route orders, and compare carrier rates, all from one dashboard.

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Technology and operations, working as one

Most 3PLs license third-party software and hand you a login. Cart.com built its WMS, OMS, and TMS from the ground up, creating a seamless connection between technology and the fulfillment network that powers it.

The problem

3PLs use third-party software that creates gaps in data and visibility
Manual carrier selection leaves freight savings on the table
Disconnected systems mean inventory data is stale or out of sync
No single dashboard forces teams to toggle between platforms
Security vulnerabilities put brand and customer data at risk

What Cart.com delivers

WMS, OMS, and TMS built and operated by the same team
Dynamic rate shopping saves new customers 10-15% on freight
Real-time inventory sync across every channel, updated 24/7
Single merchant dashboard for every fulfillment workflow
SO, NIST, NSM-10, and DOD Zero Trust security standards built in

The core technology stack behind your fulfillment

Cart.com's fulfillment platform is built around four interconnected systems that give brands end-to-end control, from warehouse floor to customer doorstep.

Warehouse Management System

Cart.com's proprietary WMS powers every stage of warehouse ops, receiving, ML-driven pick paths, packing, shipping, and returns, unifying D2C, B2B, and marketplace orders with GS1/UCC-128 compliance and built-in BI and labor management.

Order Management System

Cart.com's OMS gives full visibility and control over orders and inventory across every channel, automating routing and supporting flexible fulfillment like BOPIS and BOSFS so service teams resolve issues fast.

Real-time Inventory Visibility

Cart.com syncs inventory across every channel and location in real time, preventing stockouts and over-allocation, with built-in FIFO/FEFO compliance for regulated industries like food and pharma.

Merchant Dashboard and Analytics

Cart.com's merchant dashboard puts operational intelligence at your fingertips, no IT ticket required, with 194 built-in reports plus Demand AI surfacing predictive insights.

Warehouse management system (WMS)

Cart.com's proprietary WMS was built by practitioners who understand what it actually takes to run a high-volume, omnichannel fulfillment operation.

The system handles every process from inbound receiving and put away through pick, pack, ship, and returns, powered by ML-driven pick path optimization, smart packing station layouts, and robust labor management tools. Because it runs natively alongside our physical fulfillment operations, the WMS is backed by 194 built-in reports spanning inventory, labor, shipping, order, and financial performance, 144 of them (74%) built for full customer visibility, not just internal use.

Brands using Cart.com's WMS gain the operational precision of an enterprise-grade system without the complexity or cost of implementing and maintaining one independently.

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Order management system (OMS)

Cart.com's OMS is the command center for omnichannel order and inventory operations. It gives merchants and their operations teams a single source of truth for order status, inventory allocation, shipment tracking, and channel performance, across every sales channel and fulfillment location simultaneously.

The system supports sophisticated order routing logic, BOPIS and BOSFS workflows, customer service order management, and compliance with inventory handling rules like FIFO and FEFO. Hundreds of pre-built reports and Cart.com's Demand AI help brands make proactive decisions about inventory positioning, replenishment timing, and capacity planning.

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Transportation management system (TMS)

Cart.com's TMS runs Cart Parcel: one price per service level, honored on every order, no matter which carrier actually ships it.

Dynamic rate shopping compares carrier options and service levels in real time and selects the best fit for cost, speed, and delivery commitments, including calendar-day routing so a "3-day" promise doesn't quietly become five once a weekend lands in transit.

New customers save 10-15% moving to Cart Parcel pricing. The system consolidates all carrier performance data into a single dashboard, giving merchants full visibility into transit times, carrier scorecards, and cost-per-shipment trends.

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Purpose-built features for tech-forward brands

From intelligent picking algorithms to dynamic carrier rate shopping, Cart.com's platform includes the operational features that high-growth ecommerce brands actually need.

AI-powered pick path optimization

Cart.com's WMS uses machine learning algorithms to calculate the most efficient pick paths through the warehouse, reducing travel time and labor cost per order. Intelligent pick waving groups orders so warehouse teams can process higher volumes with greater accuracy. The result: faster fulfillment cycles and fewer errors at scale.

Dynamic carrier rate shopping

Cart.com's transportation management tools automatically compare rates across carriers and service levels in real time, selecting the most cost-effective option that still meets your delivery promise. Combined with Cart.com's preferred carrier relationships and negotiated rates, brands routinely save up to 40% on freight costs. No manual rate lookups, no guesswork.

Automated order routing

When an order comes in, Cart.com's OMS evaluates inventory availability, facility proximity, channel requirements, and carrier options to route it to the optimal fulfillment location automatically. Routing rules are fully configurable — by channel, SKU, customer type, or geography. Your fulfillment network operates at maximum efficiency without manual intervention.

Omnichannel inventory synchronization

Cart.com keeps inventory synchronized across every channel — your DTC site, Amazon, retail stores, wholesale accounts, and more — updating in real time as orders are placed and fulfilled. Eliminate the risk of overselling, prevent costly stockouts, and give every sales channel an accurate picture of available inventory at all times.

Returns management

Cart.com's WMS makes returns processing straightforward for both operators and customers. Merchants can view returns, generate labels, and process restocking directly through the dashboard. Native integrations with third-party returns platforms including Happy Returns and Loop deliver a seamless branded returns experience without adding operational complexity.

Enterprise-grade security

Cart.com's fulfillment platform meets the security standards required by the world's most demanding organizations — including the U.S. federal government. The platform aligns with ISO, NIST, NSM-10, and DOD Zero Trust security standards. This makes Cart.com a strong fit for brands in regulated industries, healthcare, public sector, and enterprise retail.

The only 3PL that owns both the software and the network

Most 3PLs license their warehouse software from a third party. Most fulfillment software companies don't operate a single warehouse. Cart.com does both — and that changes everything. When the same organization builds the technology and runs the facilities, the software is engineered to solve real operational problems, not just check feature boxes. Changes happen faster, data flows more freely, and the merchant experience is seamless rather than stitched together. Competitors like ShipBob, Flexport, and Whiplash offer either a merchant-facing platform or logistics execution — Cart.com delivers an integrated system where proprietary software and physical fulfillment operations are purpose-built to work as one. That integration is what enables Cart.com brands to unlock higher accuracy rates, lower shipping costs, and faster time-to-customer than they could achieve with any fragmented alternative.

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Integrations and automation that eliminate manual work

Cart.com's API-first architecture connects cleanly to your existing commerce stack, and our warehouse automation systems eliminate the bottlenecks that slow down high-volume fulfillment.

API-first integration architecture

Cart.com's API-first platform connects fast to your ERP, storefront, marketplace accounts, and marketing systems. Pre-built integrations cover the most common commerce platforms, and an open API lets technical teams build custom connections. Data flows into one system — so you're never working from outdated information.

Goods-to-person robotics and automation

Cart.com's fulfillment centers deploy goods-to-person robotics, automated conveyors, robotic shuttles, ASRS, sortation systems, and auto-bagging — all coordinated with our WMS software. The result: higher throughput and lower labor variability, at any order volume.

Ecommerce platform connections

Cart.com integrates directly with Shopify, Shopify Plus, Amazon, Walmart Marketplace, and other major ecommerce and marketplace platforms. Orders flow automatically into the fulfillment system the moment they're placed, and inventory syncs back in real time — preventing oversells before they happen.

Transportation automation

Cart.com's TMS automates carrier selection, rate comparison, label generation, and shipment assignment — no manual review required. Rules-based logic applies your preferred carrier strategy at scale, while dynamic rate shopping continuously finds cost savings, even as order volumes surge.