It is similar to concur travels trip pre-approval feature in that it requires a travelerto obtain approval before a trip can be booked. unlike concur travels pre-approvalfeature, concur request also includes: multiple and intricate (if desired) approval workflows, rules, fields, and forms specialized approvers based on the request amount or rule violation level attached images (for receipts, scheduled events, or descriptions) forapprovers to review cost allocation (to divide the cost of the trip among cost centers or projects) cash advances (for tips, taxi, travel allowances, etc.) email sent to the travel agency for pre-booking, booking, and cancellation email reminders and confirmations for the traveler and approver customizable segments that are included in the trip but are not necessarilyrelated to travel (like events and meetings)