What's the difference between an expense type and an expense item?

An expense type is a potential expense that you can incur that has been defined during setup.

An expense item is the actual expense that was incurred. An expense item is always associated with an expense type during expense entry on an expense report.

Based on the expense type setup, you can itemize an expense item and allocate your expenses, for example, by specifying a company, cost center, or project. Depending on setups, you can also add fields to capture supporting information, such as Travel Itinerary Number or Checkout Date.