Approvar Details are Not Visible while Creating Expense Report

While creating an Expense Report, You observed that approver details are not  visible in Expense Report Header.

Reproducing the Issue 

1. Go to the Travel & Expenses Work Center.
2. Create new Expense Report.
3. Add the Expenses details.

You observed that approver details are not visible in the header details.

Cause

Approver details will be visible only if expense report need approval based on your company specific configuration.

Example: Approval of expense report is required if amount of Expense TypeABC is greater than XYZ.

So in case amount is lesser than XYZ approver details will not be visible.