The process of product costing implies the calculation and automatic postings of different variance categories for all manufactured materials. Up to this point the materials are still valuated at standard prices.
In order to have a realistic view on stock values and profit & loss statement, the functionality of material ledger is used to re-valuate the concerned materials at a periodic-unit-price.
In ERP, this computation is done for produced materials (and a few exceptions).
The actual costing/material ledger takes into account the above mentioned variances.
At the end of this process automatic postings are done and the revaluation leads to adjustments in the stocks values on material level.
