In the field Period/year, you can explicitly set the validity date for which you want the system to look for a valid product cost estimate. The system uses the first day of the period you specify. In other words, the system looks for a material cost estimate with a valid-from date corresponding to the first day of the period you enter.
When defining the costing key, you can enter either a costing date, a period, or a value for the plan periods indicator.
For more information about this field, see: