This filter compares the total number of items (or volume for bulk commodities) to the maximum count (the ceiling) that you specify.
The specified action is taken whenever the item count in a transaction exceeds the specified ceiling.
An unusually high item count (compared to the average for your business) can indicate potential fraudulent activity. Fraudsters frequently attempt to order large numbers of attractive items that can easily be resold.
In addition, some items are more susceptible to fraud than others. For example, a computer can be resold for much more money than can a pair of sport shoes. The likelihood of selling the item quickly is also a factor.