How to track who last updated the expense_type and accounting segment of an expense report/line?

Hi,

We have an issue where an expense type is populated with the wrong accounting segment. This could be from an Oracle bug, or from "duplicating" a previous expense report that has the

wrong accounting segment.

We have a report comparing the default accounting segment (from expense report template) for a particular expense type, with the submitted accounting segment.

However, this is not sufficient, as the Travel Auditors sometimes do manual updates or corrections of the expense types/accounting segments, which might not be the same as the default accounting

segment from the expense report template.

We need to identify if the accounting segment or expense type has been updated after employee submission, and by who.