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

The InfiPlex FSI integration connects an FSI-managed warehouse to the InfiPlex Inventory & Order Management System. InfiPlex aggregates orders from every sales channel you run, sends fulfillment-ready orders to FSI, and pushes the resulting tracking back out to the originating marketplace — all while managing real-time inventory sync across channels that FSI alone doesn't handle.

Yes — this integration connects to a warehouse or fulfillment relationship you already have with FSI. If you don't have an FSI relationship, InfiPlex's own order and shipping workflow already covers 100+ carriers and can route to other 3PLs directly.

Setup is quick and simple: our USA-based team works with you and your FSI account contacts to establish the connection during onboarding. There's nothing to install and no developer needed on your end.

Most sellers are live within the standard 1–3 business day window; our team scopes the specific timeline once we understand your FSI fulfillment setup.

No — FSI's warehouse operations continue exactly as configured. InfiPlex changes what happens before an order reaches FSI (multichannel aggregation and inventory sync) and after (tracking distributed back to the right channel).

InfiPlex does. Orders from every connected channel — Amazon, Walmart, Shopify, and 130+ more — pull into the InfiPlex OMS about every 15 minutes, giving you one aggregated queue rather than configuring FSI to connect to each channel independently.

Once an order is ready to ship, InfiPlex sends it to FSI, which then handles picking, packing, kitting where applicable, and shipping according to your existing fulfillment agreement.

Automatically — once FSI completes the shipment, the tracking number flows back through InfiPlex to whichever channel the order originally came from.

Yes — stock levels at your FSI-managed location feed into InfiPlex's master inventory pool, reconciled against every other channel and location in real time.

Yes — InfiPlex's routing rules can send specific SKUs, regions, or order types to FSI while other inventory ships from your own warehouse or a different partner, all reconciled against one inventory pool.

Yes — FSI's services include kitting and assembly alongside standard pick, pack, and ship; InfiPlex sends the underlying order and receives the fulfillment confirmation without needing to manage the kitting logic directly.

Yes — dropshipping is one of FSI's core service offerings; InfiPlex's order routing works the same way for dropship fulfillment as it does for standard warehouse-held inventory.

Return status and receiving data from FSI can flow back through InfiPlex to update the order record and, where applicable, adjust inventory once a return is received back into stock.

Yes — as a 3PL, FSI can connect through InfiPlex's 3PL Connector program, giving each of its brand clients their own Site Area while fulfillment stays centralized at FSI.

Yes — FSI specializes in supporting both direct-to-consumer and B2B ecommerce fulfillment; InfiPlex routes either order type to FSI based on the rules you configure.

No — InfiPlex includes its own order and shipping workflow across 100+ carriers, so FSI isn't required. This integration exists for sellers who already fulfill through FSI's Atlanta-based warehouse network.

FSI's Atlanta location reaches 80% of the US within two days using economical ground shipping, which can suit brands prioritizing that specific coverage. InfiPlex's value in that case is the multichannel order aggregation and inventory sync layered on top.

It works alongside it. InfiPlex isn't trying to replace FSI's warehouse execution — it's solving the multichannel order aggregation and real-time inventory sync problem that sits upstream of fulfillment.

Yes — because InfiPlex owns the channel connections rather than FSI, switching warehouses or 3PLs later doesn't require re-connecting every marketplace; only the fulfillment routing changes.

Yes — the 3PL Connector program gives each client their own Site Area with their own channel mix, all routed to an FSI-run warehouse where applicable.

FSI connects on every InfiPlex plan. Basic Starter is $49.99/month with up to 2,000 SKUs at $0.50 per order; Growth Starter is $499.99/month with 10,000 SKUs and 1,000 orders included ($0.10 per additional order); Growth Pro is $999.99/month with 100,000 SKUs and 10,000 orders included ($0.05 per additional order). Full details are on the Pricing page.

Yes — your FSI fulfillment fees are billed under your existing service agreement; InfiPlex's plan and per-order pricing are separate and cover the multichannel OMS layer.

No — FSI is a standard included integration. You pay your InfiPlex plan and per-order fees only.

Growth packages carry a 3-month minimum commitment and Partner packages a 12-month term; Basic Starter is month-to-month. Schedule a demo and we'll walk through how InfiPlex and your FSI fulfillment fit together.

No — FSI connects as a standard included integration like any other fulfillment partner; your InfiPlex plan and per-order pricing don't change based on the scale of your engagement.

Yes — many sellers connect a single channel first to validate the workflow before expanding to their full channel mix.