Stamps.com shipping integration
Ship with Stamps.com from one platform
Compare Stamps.com rates, print labels in bulk and push tracking to every marketplace automatically — from the same pick-and-pack workflow you use for every other carrier in United States.
Everything you need to ship with Stamps.com
Live rate shopping
See Stamps.com rates next to every other carrier and pick the cheapest or fastest service per order.
Bulk label printing
Print Stamps.com 4x6 labels in PDF or ZPL for hundreds of orders at once.
Automatic tracking upload
Tracking numbers go back to Amazon, Walmart, eBay, Shopify and more as soon as the label prints.
Voids & adjustments
Void unused Stamps.com labels and see carrier adjustments against each shipment.
Multi-warehouse ready
Ship from any warehouse or 3PL location with the right origin address automatically.
Shipping cost reporting
Actual postage recorded per order so you know your true profit.
Get started in 3 steps
Connect Stamps.com
Add your own Stamps.com account or use Willowcommerce discounted rates where available.
Set shipping rules
Choose default services, packages and automation rules per store or warehouse.
Rate, print and ship
Buy labels in bulk and let tracking sync back to every channel.
What is the Willowcommerce Stamps.com integration?
Willowcommerce (formerly GBCommerce) is multichannel eCommerce software for sellers, brands and 3PLs. Its Stamps.com integration lets you compare rates, print labels in bulk, void unused labels and push tracking to every marketplace — alongside USPS, UPS, FedEx, DHL and other carriers.
What's included
- Live Stamps.com rate shopping at pack time
- Bulk label printing (4x6) and manifests
- Tracking pushed back to the originating marketplace
- Landed shipping cost recorded against each order
Stamps.com integration FAQ
Does Willowcommerce integrate with Stamps.com?
Yes. Willowcommerce lets you rate shop, buy and print Stamps.com labels, void unused labels and track shipments from the same screen you use for every other carrier.
Can I use my own Stamps.com account?
Yes. You can connect your own Stamps.com account and negotiated rates, or use platform rates where offered.
Is Stamps.com tracking sent back to my marketplaces?
Yes. Stamps.com tracking is uploaded automatically to the marketplace or store the order came from.
Which label formats are supported?
Labels print as 4x6 PDF or ZPL for thermal printers, individually or in bulk batches.
Why sellers choose Willowcommerce for Stamps.com
- Compare every carrier in one click
- Bulk labels with automatic tracking upload
- Multi-warehouse and 3PL ready
- True shipping cost per order