How to Define a Lookup Data Source
The main object in a lookup page is the lookup data source. A lookup data source can be defined independently as a data source object. The advantage is the possible re-use of this (conceptual) data source object in multiple pages afterwards.
Usually, you define a lookup data source to identify a non-conceptual relationship between two tables. This lookup data source can then be used in lookup pages or info pages as if it were a conceptual lookup table.
To define a new lookup data source:
A new Subclass of the table appears. You can rename this subclass to a logical name, for example: Discount percentages for Person discounts.
A new Lookup1 object appears.
Or, if the page in which you plan to insert the data source does not contain a PERSON data source, specify the path:
You can now insert this lookup data source in a lookup page or in an info page.