Amazon EasyPost Integration
Nventory connects Amazon Seller Central to EasyPost, giving merchant-fulfilled (MFN/FBM) sellers access to 100+ carriers through a single integration. Orders sync into Nventory, product data feeds into accurate shipping workflows, and tracking pushes back to Amazon to meet SLA requirements.
Sync Matrix
4 data entities in the sync matrix — 1 bidirectional, 3 one-way. Tap any row for details.
Good to Know
Platform restrictions outside any integration tool's control
Fulfillment by Amazon (FBA) orders are fulfilled from Amazon's warehouses and do not route through EasyPost. This integration covers merchant-fulfilled (MFN/FBM) orders only.
Label creation is handled through EasyPost's API. Nventory syncs order and product data and pushes tracking back to Amazon.
This integration routes shipping through EasyPost rather than Amazon's Buy Shipping service. Sellers who prefer Amazon Buy Shipping rates should use that workflow separately.
Things to Consider
Platform-specific details and how they affect this integration.
Amazon requires sellers to maintain a Valid Tracking Rate above 95%. Late or missing tracking uploads can result in account suspension for merchant-fulfilled orders.
Nventory pushes tracking numbers from EasyPost to Amazon as soon as shipments are created, helping maintain VTR compliance regardless of which carrier is used. The tracking carrier code is mapped correctly so Amazon recognizes it as valid.
Who Uses Amazon EasyPost Integration
Common scenarios for connecting Amazon and EasyPost.
How It Works
Nventory sits between your platforms and keeps everything in sync.
MFN Orders Import
Amazon merchant-fulfilled orders sync to Nventory automatically with product data, weights, dimensions, and shipping addresses.
Rate Shop Across Carriers
Accurate product data from Nventory feeds into EasyPost for rate comparison across 100+ carriers. Select the best option per shipment.
Ship & Generate Labels
Create labels through EasyPost for the selected carrier using accurate package data synced by Nventory.
Tracking Pushed to Amazon
Tracking numbers sync to Amazon with correct carrier codes through Nventory, meeting ship-confirm SLA and maintaining Valid Tracking Rate compliance.
Frequently Asked Questions
No. FBA orders are fulfilled by Amazon's warehouses and do not route through EasyPost. This integration covers merchant-fulfilled (MFN/FBM) orders only.
Nventory pushes tracking numbers with correct Amazon-recognized carrier codes as soon as shipments are created in EasyPost. This helps maintain VTR above 95% without using Amazon Buy Shipping.
Yes. You can use EasyPost through Nventory for orders where your negotiated rates are better, and Amazon Buy Shipping for others. The two workflows can coexist.
When EasyPost creates a shipment, Nventory maps the carrier to Amazon's recognized carrier code list (e.g., FEDEX, UPS, USPS) so tracking uploads are accepted and count toward your VTR metric.
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