I’m having trouble recording landed costs in Zoho Inventory/Books.

My purchase order is in CNY, but the landed cost (freight) I pay is in USD. Zoho forces everything under the same bill to use one currency, so I can’t enter the landed cost in its actual currency. Or if theres any other way around that i can pay the PO and landed cost under the same bill but pay in separate account and the landed still distribute across all the items in the bill?

I need a correct workflow so that:

1. My profit & loss report in Zoho Books stays accurate, and

2. The freight cost is allocated properly across all items in the purchase order.

How should I process this correctly when the purchase and the landed cost are in different currencies?