When trying to apply a Landed Cost to a Vendor Bill generated from a dropship Purchase Order, the Landed Cost pop-up window generates a message that "Landed Cost cannot be applied to Bills from dropship Purchase Orders" when trying to save the landed cost application in the pop-up window.

1) Why can we not apply Landed Costs (Ie. Shipping Costs) to Vendor Bills generated from a Dropship Purchase Order?

2) Why does Zoho even gives us the option to "Apply Landed Cost" on Vendor Bill if it is not possible to do so

Even though Purchase Order will be shipped directly from our vendor to our customer, one should be able to apply any landed cost (shipping charge) specified on Bill from Vendor so that Cost of Goods Sold is calculated accurately.