An employee can generate a travel request including estimated/budgeted expenses. (The request can be any type but not mandatory to be ‘Travel’ even though the system option states ‘Travel Request’).
The request will be sent to the Supervisor/HOD for approval. The Supervisor/HOD and the Admin can assign the request to an employee. If assigned it will not have an approval process.
Select Expense > Travel Requests > Employee Travel Requests from the Main Menu. Travel Requests Screen will appear. Click the filter icon to filter the list.
Read Article - Add Travel Request