Instance
The Instance source type can be used to refer to both of the following:
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The current UI context when viewing quotes and orders
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The current customizable product instance being configured
Used for Siebel order management business components (such as Order Line Item), the Instance source type, shown in the Business Component User Properties list applet in the following figure, allows you to query active UI business components to retrieve variable values. The business component queried can be a regular, external, or virtual business component.
Used for customizable product instance property sets, the Instance source type retrieves data from the business component initiating the signal that causes the GetRowSetData method to be called. Data can also be retrieved from any parent or child business component.
Mapping Integration Objects
For business components, the Instance source type uses mapping of integration objects to resolve the different business component naming and field naming between Quotes, Orders, Assets, and Agreements. You map integration objects using Web Tools.
For a customizable product with Instance source type, the instances are loaded by Configurator services and the structure of these instances is hierarchical with three types: Header, Line Item, and XA. No other types are supported for a customizable product. The namespace mapping is a simple match between the type specified in the variable source path and the customizable product Instance type.
For more information about using the Instance source type, see Using the Instance Source Type for the Customizable Product Instance Property Sets.

The following topics include further information about creating and using variable maps: