- The following providers are referred to process orders. sinalite.com
- Additional fee is used to control pricing rules.
- Additional fee of Quantity attribute is treated as the percentage value. If it is positive, the final price would be increased, otherwise decreased.
- Additional fee of the attribute which the "Use Percentage" field is true is treated as the percentage value. If it is positive, the final price would be increased, otherwise decreased.
- Some attributes have "Apply to..." fields true. The additional fees of these fields are multiplied by the corresponding size fields (like width, length, size, pages, etc), adding to the final price.