The functionality requires the Volume Discounts add-on to be installed and enabled.
A store admin can set up membership-specific discounts. The process of setting up a membership-specific volume discount is relatively straightforward:
Add a new offer on the Volume Discounts page of your store's Admin area. See detailed instructions here.
X-Cart 5.4.x - Discounts > Volume Discounts
X-Cart 5.5.x - Sale Tools > Volume Discounts
Specify the subtotal amount starting from which the discount will be available. Set the discount amount (select an absolute value or a percentage) and select the membership level that a customer must have to use the discount.
Save your changes.
More info on volume discounts you can find here.
Related pages: