Our organization issues a PO Number (an internal control) and a Due Date (for cash flow purposes) to all invoices as they come in the door. This system worked well when we were entering invoices into the AP module because FE has fields to accommodate them. We are now trying to use the Expense Management module for internal approvals, but we have found that there is not a field for PO Number and Due Date. So now, after the expenses are approved, we actually have to go back into the AP module and "fix" these fields. I think it would be helpful if the Expense Management module offered all the available AP fields - or at least the PO Number and Due Date fields.