You can enter the date for
cost component structures from which the structure is to be valid. With this function, you can use a new cost component structure for the cost estimate without having to change an existing structure.
Cost estimates that have already been saved are still available for analysis.
In Customizing for Product Cost Controlling, you can specify the
date from which a cost component structure is to be assigned to an
Define cost component structure
Further information is available in the Implementation Guide for Product Cost Controlling and in the documentation for Product Cost Planning in the R/3 Library.