AWA: Jobs in 'waiting for predecessor' can not be cancelled via CANCEL_UC_OBJECT or cancel in the user interface.
Article ID: 191492
CA Automic Workload Automation - Automation Engine
When attempting to cancel a job in 'waiting for predecessor' (status 1700) via CANCEL_UC_OBJECT or cancelling within the Automic Web Interface, the operation fails stating this is not a cancelable status.
Component : AUTOMATION ENGINE
As designed. The cancel command only applies to objects in an active status: