eCart - UPS Rate Request - Customer Class
In the checkout wizard for UPS rate request I am being asked what my "Customer Class" is.
I talked with UPS web tech support and they don't know what this is for and said this type of field is not required for a rate request.
It has 4 options in a select list:
Any idea what I should put here? Does this field submit to UPS? If so...what is its purpose?