Each recipient group specifies a source object, called the recipient source – like Opportunity, Account, Action, Internal Division, etc… The recipient group also specifies a recipient group business component, which must be a direct child of the primary business component for the recipient source object. The actual recipients come from the recipient group business component, like Employee, Contact; and the link between the primary and child business components define these recipients. (Example: A recipient group can be based on a recipient source specifying one or more accounts and related contacts, or it can be based on a recipient source directly specifying one of more employees)