This document provides instructions for creating a secondary cost element in cost center accounting. Secondary cost elements are used to allocate costs between cost objects and are created under class 9 accounts between 900000-999999. This transaction code creates a secondary cost element with cost element category 43, which is required to attach the cost element to an activity type. The user creates cost element 943202 with name "Labour hours" and description "Labour hours" to allocate labor hour costs to activities.