Announcement reposted from Amazon:
Amazon Buy Shipping now offers the lowest commercial USPS rates that are available, with an average of 35% off USPS Ground retail rates.
Amazon Buy Shipping helps you to save more on labels, and improves the selling experience, with a 100% Valid Tracking Rate and automatic shipping confirmation. Amazon Buy Shipping provides A-to-z claims protection that are related to delivery issues or items that have not been received.
On Amazon Buy Shipping, you can purchase shipping labels with Amazon’s pre-negotiated rates, or connect your carrier account to use your own rates.
You can use Amazon Buy Shipping on Seller Central, on your own software via our Selling Partner APIs, or through select third-party shipping integrators.
To use Amazon Buy Shipping, go to Manage orders.
For more information, including eligibility for A-to-z claim protection, go to Use Buy Shipping services.