About Action Catalogs

Action catalogs are action containers, where you can categorize your actions based on various criteria. The catalog in which an action resides is set at action creation using the task creation activities in Studio. The catalog must be defined beforehand in Orchestrator. If you define a catalog which hasn't been created in Orchestrator beforehand, the task is generated in Orchestrator with no catalog. Details here.

Note: Action catalogs cannot be deleted.