In addition to validations from Pega Government Platform, the Investigative Case Management layer has an additional set of validations for managing associations.

• An event can be associated with only one investigation.
• An investigation can be associated with any number of events and subjects.
• An investigation can be associated with an event or a subject once. When searched, any already associated events and subjects are not retrieved.
• Only an authorized user can associate an investigation with a subject or event.
• A subject can be associated with only one investigation.
• A subject can be associated with an entity of same type. For example, a subject of type person can be associated with a person entity.
• A subject can be associated with only one entity. For example, a subject cannot be associated with "Person-1" as well as "Person-2."
• An entity can be associated with a subject only if the subject is unknown. Known subjects are not displayed in search results.
• An investigation with the Under-Investigation work status can only be associated.
• Events with the Resolved work status can be only be associated.

To update or add new validations, update the CheckDuplicateAssociation (PegaPS-Work-Manage-Associate) activity and the ManageAllAssociations (PegaPS-Work-Manage-Associate) validate rule.