Scenario
It is possible to use Inbound Shipment for Purchase Order and Landed Cost with different Currency.
Solution
1. Go to Transactions > Purchases > Create Inbound Shipment
2. On the Inbound Shipment page, under Items tab, enter PO Numbers with different currencies.3. On the Landed Cost tab, enter the Cost Category, Amount, Currency, and Allocation Method.
4. Click Save.
Disclaimer
On the Inbound Shipment it is not possible to link Standalone Bill on the Landed Cost tab.