ShipStream · InfiPlex OMS Integration

ShipStream Integration: keep your warehouse running, add real multichannel OMS

ShipStream is a warehouse management platform supporting order fulfillment for growing brands and 3PLs. The InfiPlex™ OMS aggregates every sales channel into one queue, keeps inventory synced everywhere in real time, and hands ShipStream the orders ready for warehouse execution.

  • Keep Your Warehouse WorkflowShipStream stays your pick/pack/ship execution layer
  • Multichannel Order AggregationEvery sales channel feeds one fulfillment queue
  • USA-Based Support TeamOnboarding & configuration included

How it works

How the InfiPlex ShipStream integration works

Think of ShipStream as the warehouse execution layer, and InfiPlex as the layer above it that aggregates every sales channel into one order queue and keeps inventory accurate across all of them. InfiPlex sends orders that are ready to fulfill over to ShipStream, your warehouse team picks, packs, and ships them using ShipStream's configured workflow, and InfiPlex pushes the resulting tracking back out to whichever marketplace or storefront the order came from.

Flow diagram: ShipStream sends new orders to the InfiPlex Order Management System about every 15 minutes. InfiPlex pushes tracking numbers and real-time inventory back to ShipStream, and routes orders to Your Sales Channels, Other Warehouses / 3PLs, Other Carriers for fulfillment. ShipStream Warehouse management (WMS) Seller account InfiPlex OMS Orders · Inventory · Shipping 100+ carriers · buffers · automation SINGLE SOURCE OF TRUTH Pick/pack/ship confirmations & inventory returned Orders sent for warehouse fulfillment Orders routed for fulfillment Ship confirmations + stock levels return Your Sales Channels Amazon, Walmart, Shopify & more get tracking Other Warehouses / 3PLs Mix with your own fulfillment or other partners Other Carriers Combine with 100+ direct carrier connections
The InfiPlex ShipStream sync rail: orders ready to fulfill flow from the OMS into ShipStream for pick, pack, and ship execution; ShipStream returns shipment confirmations and inventory levels; and InfiPlex pushes tracking out to whichever sales channel the order came from — while inventory stays reconciled across every connected channel in one pool.

What’s included

Everything the ShipStream integration handles for you

  • Keep Your Warehouse Workflow

    ShipStream stays your pick/pack/ship execution layer — no changes on the floor.

  • Multichannel Order Aggregation

    InfiPlex pulls orders from every sales channel and sends fulfillment-ready orders to ShipStream.

  • Real-Time Inventory Sync

    InfiPlex handles the cross-channel inventory reconciliation ShipStream alone doesn't provide.

  • Tracking Routed Back Automatically

    Shipment confirmations from ShipStream flow back through InfiPlex to the originating channel.

  • Mix Warehouses & 3PLs

    Route some orders to ShipStream and others to your own warehouse or a different 3PL.

  • No Disruption to Automation Rules

    Existing ShipStream configuration and automation continue to apply exactly as they do today.

Frequently asked

Top ShipStream questions, answered

Our dedicated FAQ hub answers 26 real questions about setup, order management, inventory sync, shipping, and pricing. A few of the most-asked:

View all 26 ShipStream FAQs →

Connect the rest of your stack

Pair ShipStream with the systems you already run

InfiPlex connects ShipStream with 130+ marketplaces, carts, shipping platforms, 3PLs, WMS, and ERP systems — and our Growth Packages include building new API integrations you need at no additional cost.

Ready to put ShipStream on autopilot?

your OMS is typically live in 1–3 business days, and our USA‑based team handles onboarding with you — no coding required.

Questions about your exact setup?

Our team configures ShipStream integrations every week. Contact us, email info@infiplex.com, or call 888‑770‑0857 and we’ll walk through your channels, warehouses, and volume together.

ShipStream is a trademark of its respective owner. All other marketplace and product names are trademarks of their respective owners. InfiPlex is an independent integration provider and is not endorsed by or affiliated with ShipStream's operating company. ©2026 InfiPlex. All rights reserved.