A warning message appears when you attempt to delete an item that has a standard cost, either active or historical. This is done to help preserve the integrity of the data used to evaluate items’ inventory costs. For example, this happens when the unit cost of an item is found in inventory revaluation transactions and not on item records.
Before you can delete such an item, you must first delete the standard cost on the inventory revaluation transaction. The warning message displayed includes a link to the revaluation transaction that includes the standard cost.