Hi,
I have observed that this error comes up when a consumption related cost element is not assigned to in OKTZ;
System attempts to find cost component for the cost element so that when CKM3N is executed, the cost can be placed in appropriate cost component;
This error is also seen when cost elements in Primary Cost Component and Auxiliary Cost Component differ and some of the consumption cost elements do not find place in Auxiliary Cost Component;
Regards
Satya