How to validate that the AP audit rules for employee expenses, 80%-20% rule in Oracle Fusion

Hi all, one of our users ask this question to us:

How to validate that the audit rules for employee expenses, 80%-20%, are in place for the volunteer expense submissions as well. For AP Expense Audit Rules

 Please provide me with the configuration rule currently in place.

We are not sure where we can check this. Can anyone help us with this?