• Automatically closes all open rental items. This means that if the contract contains any non-returned rental items the program will return them, compute the actual rental periods and charge the standard rates for the actual periods. The standard rate means that the customer will be charged the lowest rate for the period that he kept the item. For example, if he initially rented the item for 1 day but kept it for 1 week, he would be charged the weekly rate.

You will notice once you choose the close all items the status bar turns from green to red, letting you know the item has been returned.
