Extending Quote Quantities
The Extended Quantity Field user property defines the line item business component that Siebel CRM uses for a quote. For example, Quote Item. The value for this user property must contain the field name for the Extended Quantity in the line item. For example:
Extended Quantity Requested
You can configure Siebel CRM to modify the value for this user property, but not to deactivate it or create a new instance of it.