It is always best to keep a backup or printed copy of your license key in case you have to re-enter it. If you can't locate it, you can use the automated support options below.

For purchases after 03/2007 https://support.bluesnap.com/page/shopper-faqs

For purchases before 04/2007 http://shopper.esellerate.net/ics/support/default.asp?deptID=5620