What is the difference between the Inventory Cost report and the Inventory Valuation report? Why is there an option for both Cost and Valuation in the Cost report?
The differences between the Inventory Cost and Inventory Valuation reports are primarily functionality.
Cost related tables used for costing report:timCostTier
Cost related tables used for valuation report:timInvtTrantimInvtTranCosttimInvtHisttimInvtFiscPerHisttimInvtCalPerHist