Query to get Total Unit Cost from Review Item Costs

Summary:

Query to get Total Unit Cost from Review Item Costs

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I have tried following Oracle documentation in order to fetch the Total Unit Cost field from the field below on Review Item Costs:

The issue we have found is that most of the queries I have seen utilize either the CST_PERPAVG_COST_HEADER_V view, and/or the CST_ PERPAVG_COST table, and in our environment both this view and table have no rows in it (blank).

I want to get the most effective dated Unit Cost per Item / Cost Org / Valuation Unit, how can I fetch this information given that the above objects do not have data in them?