Connect Your Commerce Stack with MacMillan’s Plug-and-Play Integrations
MacMillan Supply Chain Group offers plug-and-play e-commerce integrations that connect your online stores, marketplaces, WMS and TMS into one streamlined 3PL solution. Our Mantis-powered platform uses an API-first architecture to keep orders, inventory, and shipment data in sync in real time.
ERP & Platform Integrations
Whether you’re managing inventory through a cloud-
based ERP or selling across multiple online channels,
MacMillan supports integrations with leading systems
including:
- SAP
- Oracle
- Infor
- NetSuite
- Microsoft Dynamics 365
- Cin7 / DEAR Systems
- Custom-built ERP solutions via API or EDI
We ensure real-time order sync, inventory updates,
and financial reconciliation—reducing manual work
and improving accuracy.






Retail & Marketplace Compliance
Our partnership with integration solutions providers
enables frictionless EDI integration with major retailers,
ensuring you’re always compliant with routing guides,
ASN formatting, and PO management.
We support retail integrations with:
- Walmart
- Amazon
- Costco
- Loblaws
- Sobeys
- Canadian Tire
- Home Depot
- Rona
- Best Buy
And over 1,000+ trading partners across North America
You can simplify vendor onboarding, reduce chargebacks,
and maintain fast, accurate retail fulfillment powered by
our warehouse execution.









Carrier & Shipping System Integrations
MacMillan supports direct integration with all major
carriers and 3PL shipping systems, enabling rate
shopping, label generation, and real-time tracking from a
single platform.
Carrier integrations include:
- Canada Post
- Purolator
- FedEx
- UPS
- Canpar
- GLS
- DHL
- FleetOptics, Intelcom & other final-mile specialists
Whether you ship parcels, pallets, or LTL, our systems
adapt to your transportation strategy and volume.








Built for Scale,
Customized
for You
Every integration is supported by our in-
house IT and implementation teams,
ensuring a fast, reliable go-live process. From
API-based connections to EDI document
mapping, we deliver tailored solutions that fit
your operational needs today—and scale with
you tomorrow.
Ready to Connect?
Contact MacMillan SCG today to discuss your integrations and connect your e-commerce platforms to our WMS and TMS-backed 3PL network.