PO approvals amounts does not work for another recently added ledger functional currency in DKK

Summary:

Hi

We have already defined many PO approval rules based on various amount using functional total amount with functional currency being USD.

it is working as expected but now we added another ledger/another BU which uses different currency Danish Krone (DKK) as DKK value is less than USD by 6 times but the approvals values or functional total amount is in DKK. document approvals are routed as per the USD values. it does not convert it

example- if there was a rule 25 K to 50K rule, it goes to manager as it was originally USD

but now this new BU/ledger Danish Krone also takes 25K to 50K and it gets routed to Manager level however the value of this PO is 5K in DKK, it should get routed to supervisor.