while i am working with execute batch input session[sm35]. i will get following messeges
Cost element already exists from 01.04.2010 to 31.12.9999
Message no. KS031
Diagnosis
The cost element is already fully or partly defined for the interval 01.04.2010 - 31.12.9999. You can only add a cost element if it does not exist at all in the entire interval.
Procedure
Use display function to check in which interval the cost element is already defined. You can create the cost element in periods for which it is not yet defined.