Companies generally struggle to understand and implement expense report approval and audit practices that will reduce their risk to expense report leakage or outright fraud. Part of the issue is trying to completely manage the expense report process internally. The other part of the issue is that companies have the misconception that 3rd-party services from providers such as InterplX are cost prohibitive.
An IFO article from their Q1 2015 Financial Ops Magazine discusses the issue and solution in greater detail. Click Here to view the article and to learn about how best practices and 3rd-party audit services can actually save time and money.