Currently (with6.1 or older) it's not possible. The default behaviour is hardcoded to
ch.ivyteam.ivy.workflow.SystemTaskFailureBehaviour.FAIL_TASK_DO_RETRYch.ivyteam.ivy.workflow.SystemTaskFailureBehaviour.FAIL_TASK_DO_RETRY
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With 6.2 we introduced a new System Property so that the default behaviour can be changed system wide. See the property 'SystemTask.Failure.Behaviour' in the AdminUI. First release that contains this property is the Sprint 7 release of Jakobshorn.
