Warehouse management for modern 3PLs

WMS for high-volume 3PL and fulfillment

Shopify, EDI retail compliance, omnichannel fulfillment, and multi-client operations—built for apparel, footwear, and high-SKU warehouses.

Warehouse operations, order management, inventory control, retailer compliance, and shipping—in one system for ecommerce brands, retailers, marketplaces, and EDI-driven wholesale.

Core warehouse functionality

End-to-end capabilities for high-SKU, multi-channel operations.

Inventory management

Real-time visibility across warehouses and clients
Bin/location tracking and barcode-driven counts
RFID EPC serial support and audited adjustments
Allocation rules by client, channel, or order type

Receiving & operations

ASN and purchase order receiving
Mobile barcode scanning workflows
Carton and pallet receiving with variance reporting
Cross-docking and location transfers

Pick, pack & ship

Batch, wave, and order-based picking
Packing stations with scan validation
UCC-128 / GS1-128 labels and cartonization
Multi-package shipments and tracking updates

Returns management

Receiving and inspection workflows
Restock, quarantine, and damage dispositions
Client-specific return handling rules
Reason tracking and restocking workflows

Shopify integration

Built for high-volume ecommerce and omnichannel fulfillment—including multi-store and multi-brand 3PL workflows where Shopify is one of several connected channels.

Real-time order import and inventory sync
Shipment and tracking updates
Multi-store and multi-brand fulfillment
Returns, partial shipments, and backorders
Barcode and product synchronization

Omnichannel & marketplace platforms

Ecommerce, marketplace, drop ship, and wholesale platforms connected through centralized fulfillment workflows.

EDI & retail compliance

Many warehouse systems handle ecommerce well but struggle with retail compliance. Left Foot was built for both.

Warehouse EDI

Common 3PL and warehouse transaction sets.

940 Warehouse Shipping Orders
943 / 944 stock transfer advice
945 Warehouse Shipping Advice
846 Inventory Inquiry / Advice
947 Inventory Adjustment Advice

Retailer & trading partner EDI

Wholesale, drop ship, and retailer workflows.

850 / 855 purchase orders and acknowledgements
856 Advance Ship Notices (ASN)
810 Invoices and 860 order changes
846 inventory feeds
Store distribution support (SDQ)

Retail compliance

Labeling and packing for retail routing guides.

UCC-128 carton labels and SSCC-18
Retail routing guide workflows
Carton and pallet manifests
Packing validation
Department store compliance programs

Built for day-to-day 3PL operations

RFID

Apparel and footwear workflows where RFID compliance is required.

GS1 EPC encoding
RFID carton and item labeling
Scan validation
Retailer RFID initiatives

Multi-client 3PL

Run multiple brands from one warehouse without mixing controls.

Client-specific workflows and rules
Billing and storage fee calculation
Role-based permissions
Customer portals and reporting

Shipping & carriers

Parcel, freight, and middleware integrations.

UPS, FedEx, USPS, and EasyPost
ShipHub, FreightPOP, AfterShip
Rate shopping and multi-package support
Client carrier accounts and tracking

Flexible deployment

Cloud-hosted operations with room to customize.

Browser-based access
Mobile warehouse scanning
API-first architecture
Custom integrations available

Why Left Foot Software

Unlike generic warehouse systems, Left Foot was developed through years of real-world retail, ecommerce, EDI, and warehouse operations—especially high-SKU apparel and footwear.

Scale fulfillment for growing warehouses and multi-brand clients without enterprise ERP complexity.

Strong Shopify integration
Retail compliance built in
High-SKU inventory management
Flexible multi-channel workflows
Omnichannel and marketplace connections
3PL scalability without enterprise overhead

See how Left Foot fits your 3PL operation

Talk with our team about warehouse deployment, or explore integrations for fulfillment and retail compliance.