Customizing an existing noun

Standard nouns contain placeholders for adding customizations: the UserAreas. Usually, UserArea elements are available in multiple locations for a noun. For example, in the header and in the lines.

You can use the UserArea in two ways:

Using properties in the UserArea. This is the preferred method, because it is supported automatically for any BOD. No changes are required in the Data Catalog.
Using a custom XML structure in the UserArea. This method is required if the custom data is too complex to fit in the property structure.

Both approaches are explained below.