Amazon Buy Shipping Service API Integration
Notify the customer and mark a package as shipped if you use Amazon Buy Shipping method. Amazon no longer accepts USPS Tracking as proof of shipment unless you use signature confirmation. You are completely covered however if you use Amazon Shipping. Currently wplister does not integrate with Amazon Shipping so you have to manually process your shipments.
Under Review Category: WP-Lister for Amazon Lenard shared this idea