Within CLT "Order Processing" terminology, a line refers to a single Stock Keeping Unit (SKU) on an order, regardless of the quantity required. When multiple quantities of the same SKU are requested, it is considered one line. An order, on the other hand, may contain multiple lines. Understanding this terminology helps warehouse associates differentiate between "line count" and "item count," which are critical for performance tracking and system accuracy. For example, an order with three SKUs and five total pieces equals three lines but five items. Recognizing these distinctions supports accurate order metrics, picking efficiency reports, and helps align with performance KPIs defined in the CLT competency framework for warehouse documentation and data management.