SR 3-10544574961 : Expenses: Relationship between Security User Profiles and Expense Employees with

I recently opened an SR regarding Approvals in Expenses and how they are configured.  See notes below.  Any thoughts?  Suggestions?  Thank you!

Problem Summary --------------------------------------------------- Expenses: Relationship between Security User Profiles and Expense Employees with regard to approval Problem Description --------------------------------------------------- We are in the process of implementing Expenses and recently attended an Expenses training LVC. I'm having trouble understanding the relationship between user profiles in Security and employees in Expenses and how approvals work. Is there a document that discusses the setup and how it ties an employee to a user for approval? How does the system know who an employee needs approval from? 1st level, 2nd level, etc?