The Endeca user segments that are available as trigger options in Experience Manager come from a manually administered list. Business users must manually add new sites, site groups, and segments with Endeca before referring to them in triggering rules.
When adding the new user segments, business users must use the correct syntax. ATG user segment names, site IDs, and site group IDs are unique within type but can, in theory, collide across types. Because these names are passed as a single list to Experience Manager, a prefix scheme is used to ensure a unique identifier for each segment passed. For more details on these prefixes, see the next section, Constructing the Segment List.
