Level-3 (also known as Level III, Level 3, or Level-III) line-item detail is a data specification designed to support business-to-business and business-to-government credit card use. Level-3 line item detail provides specific purchase information such as Item Description, Quantity, Unit of Measure, Price, and more. This information is very useful to cardholding organizations to help streamline accounting and business practices and to merge payment data with electronic procurement systems.