This article applies to Classic Commerce. (Looking for Contextual Commerce documentation?)
To reset your shopping cart, alter the links used to reach your FastSpring store by adding the following to the end:
In addition, there are two page linking options that will always clear the contents of the shopping cart when a new product is added. One option is to use an html link such as
testcompany with your company id and replacing
fontmaker with your product's partial URL. The second option is to use the Create Order API.