An expression based on the usage environment of a Link typically including predicates that test the current user's membership in a group or possession of a user role that when evaluated truthfully enables an applicable value for a Link property. For example, User_* indicates that the link property setting applies to all users while User.name = joe indicates the rule applies only to a specific user named joe.
A string that defines the length of time that a generated Analytics Application should be allowed to exist before it is automatically purged. The format must be in either ISO 8601 duration format or the text
unlimited.