Frequently Asked Questions about Expenses This page is under perpetual construction, and will be updated frequently. Latest update: 26 April 2001 How do I submit expenses for reimbursement from a client? How can I combine an expense and a service in the same invoice? How do I create an Expense Report? How does an envelope get approved? How do I mark up an expense item when I bill it to my client? Is there any way to edit a receipt after an envelope has been approved? How do I assign cash advances for expenses my users incur? How do I track mileage expenses? What is the envelope tracking number, and can I change it? What is the receipt reference number, and can I change it?