Field help (PIHSTCNUM) 

The management of landed costs makes it possible to quantify the routing costs of the goods ordered from a supplier and to allocate them to the products upon order, receipt or invoice. These costs are used for the calculation of the purchase cost and stock cost.
The evaluation of these costs can be performed according to one of the two following methods:

Only one method can be used, the choice of this method is performed at the level of the product management.

A cost structure details all the costs that are considered as fixed costs and can be identified at the time of the purchase. These costs are expressed in the currency of the company.
The presence of this field depends on the entry transaction used but the value it contains can never be modified.
To display the costs considered in the cost structure, click Line cost from the Actions icon available on the line. The costs are presented on the Cost detail tab on the Direct costs table.

SEEINFONo cost structure is applied to additional invoices and credit memos.