If it is not found in VOV6--then go to sales order---procurement tab--find the requirement type.
Then through this requirement type--find the requirement class.
Then go to IMG>>>SD>>>Basic Finctions>>>TOR & Avbl.check>>>TOR>>>Define Requirement Class.
Here is there any costing related data maintained(like costing sheet,costing method,costing variant,Costing ID)
Update us.(except costing sheet COGS--every other field need to be blank in costing section-needless it is client dependent)
Phanikumar