Start the transaction using the menu path or transaction code CK40N
Double-click
enter the costing run of the month and
Expand
All error messages must be cleared
Whenthereis a warning message, itoftenhappensthatthereis a mistake in the costing.So even if itis not compulsory, itisrecommended to check the warning messages and try to correct it.
Whenerrors are corrected and warning messages checked, costinganalysiscanbegin