A functional location is identified by its label. You can assign multiple labels to one functional location. You define the label that you use most frequently as the primary label, and all other labels are referred to as alternative labels. This enables you to define only primary and any number of alternative labeling systems for a functional location structure.

This is especially useful when you require different views of the functional location structures.

Alternative labeling is activated as a basic setting in the IDES Customizing.