Cancel Trips (Approval Program) 
Use
Requests and trips can be canceled in Travel Management at any time. Unlike
deleting a trip, all trip period versions remain in the system.Procedure
The Travel Expenses screen appears
The Approval of trips screen appears.

It is possible for you to specify further selection criteria using the Further selections function.
The system lists all trips that fulfill the selection criteria.
Result
The system sets the settlement status for the request or trip to canceled. If a request or trip has already been settled and reimbursed, the system causes the necessary cancellation of postings in Accounting. If the travel expenses settlement results are transferred to Payroll (taxation or payment), the system causes the relevant retroactive accounting also to be performed.
See also:
Canceling a Trip That Has Been Posted