How to freeze conversion rate type on AP Invoices header

Summary:

How to freeze conversion rate type on AP Invoices header

Content (required):

Is there a way to prevent user from changing the conversion rate type on payables invoice header. (To be pre-selected and greyed out to prevent changing)

Or, is there a profile option available or is there a workaround to achieve this?

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

23C (11.13.23.07.0)

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