What are the standard process landed cost for multiple items in one invoice during import process

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What are the standard process landed costs for multiple items in one invoice

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for example have the purchase order that was received with a lot of lines, items, and different qty by line.

every item pay taxes by specific tariff and the customs broker sends the invoice for every specific data how can to make that match and complied with the Landed cost for the inventory valuation.

Thank a lot