Introducing USPS Pay-on-Click Return Labels and Ship200 adds a new awesome feature for return labels.

Shippers can now generate Pay-on-Click Return Labels to send to their customers. Unlike a normal return label, shippers will be charged only when the URL is opened to print the label. Shippers can specify the expiration time for the URL, which by default is 30 days. Once the URL is opened, it will expire in 24 hours.