Currency conversion in BPM Approval for Dispute Approvals

Summary:

We want to create Dispute approvals requiring conversion of the disputed amount to USD currency which is not the same as the functional currency for the BUs , please suggest how this can be achieved.

Content (please ensure you mask any confidential information):

Version (include the version you are using, if applicable):

Code Snippet (add any code snippets that support your topic, if applicable):