FSI Fulfillment · InfiPlex OMS Integration

FSI Fulfillment Integration: 3PL fulfillment, connected to every channel

FSI (Fulfillment Strategies International) provides 3PL services from its Atlanta warehouse, reaching 80% of the US within two days. The InfiPlex™ OMS aggregates every sales channel into one queue, sends fulfillment-ready orders to your FSI-managed warehouse, and keeps inventory synced everywhere else you sell.

  • Works With Your Existing 3PLNo disruption to an FSI relationship you already have
  • Multichannel Order AggregationEvery sales channel feeds one fulfillment queue
  • USA-Based Support TeamOnboarding & configuration included

How it works

How the InfiPlex FSI integration works

If your brand fulfills through an FSI-managed warehouse, InfiPlex becomes the layer that feeds it clean, aggregated demand: every sales channel you run pulls into one InfiPlex queue, fulfillment-ready orders flow to FSI, and shipment confirmations plus inventory levels flow back — all reconciled against a single inventory pool that also covers any channel or location FSI itself isn't involved with.

Flow diagram: FSI Fulfillment sends new orders to the InfiPlex Order Management System about every 15 minutes. InfiPlex pushes tracking numbers and real-time inventory back to FSI Fulfillment, and routes orders to Your Sales Channels, Other Warehouses / 3PLs, Other Carriers for fulfillment. FSI Fulfillment 3PL warehouse & fulfillment services Seller account InfiPlex OMS Orders · Inventory · Shipping 100+ carriers · buffers · automation SINGLE SOURCE OF TRUTH Ship confirmations & inventory levels 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 FSI sync rail: orders ready to fulfill flow from the OMS into your FSI-managed warehouse; FSI 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 FSI integration handles for you

  • Works With Your Existing 3PL

    No disruption to an FSI relationship you already have.

  • Multichannel Order Aggregation

    InfiPlex pulls orders from every sales channel into one queue before routing to FSI.

  • Kitting & Dropship Ready

    Supports FSI's kitting, assembly, and dropship-focused services.

  • Real-Time Inventory Sync

    One master pool reconciling stock at your FSI-managed location against every other channel.

  • Tracking Routed Back Automatically

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

  • Mix With Other 3PLs

    Route specific SKUs or regions to FSI while others ship from elsewhere.

Frequently asked

Top FSI 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 FSI FAQs →

Connect the rest of your stack

Pair FSI with the systems you already run

InfiPlex connects FSI 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 FSI 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 FSI 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.

FSI and Fulfillment Strategies International are trademarks of their 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 Fulfillment Strategies International. ©2026 InfiPlex. All rights reserved.