Stamps.com Integration: buy and print labels without leaving the OMS

How it works

How this integration works

Most shipping integrations bounce you between systems: orders in one place, labels in another, tracking pasted between them. With Stamps.com connected inside InfiPlex, the whole cycle happens on one screen. Orders from every connected channel arrive in the OMS queue, you buy and print the Stamps.com label right there, and InfiPlex immediately posts the tracking number back to the marketplace that placed the order while updating inventory across every other channel.

What’s included

Everything this integration handles for you

• Labels Inside the OMS

  Buy and print Stamps.com labels without switching systems

• Every Channel, One Queue

  Amazon, eBay, Walmart, Shopify, Magento, BigCommerce, and more feed the same order list

• Automatic Tracking Push

  Tracking posts back to the originating channel the moment a label is purchased

• Real-Time Inventory Sync

  Stock sold anywhere comes off every other channel's count immediately

• No Extra Software

  No separate shipping station, hardware, or IT project required

• USA-Based Support

  Onboarding, SKU loading, and training are included with every plan

Connect the rest of your stack

Pair this with the systems you already run

• ShipStationPrefer ShipStation? That works too
• EasyPostKeep your rate-shopping API, add a real OMS
• UPSYour negotiated rates, one multichannel queue
• FedExYour account rates, one multichannel queue

Questions about your exact setup?

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