Ethiopian Company practice and government regulation obliged us to treat Custom duty based on the tax rate assigned by the government to each line item or HS code. In SAP, Custom Duty is treated as a header condition and allocated to the line item evenly(Based on the line item total value). Which is totally wrong as it affects the unit cost of the line item by overstating or understating and as a result it will affect the consumption of those materials subject to excise tax. So there must be a means to allocate the custom duty to line item based on the tax rate and the HS code.