Workflow Rule Types
YouTrack supports four different types of workflow rules. The rule type defines the general conditions that cause the rule to be executed.
The Workflow Constructor lets you create and edit on-change, on-schedule, and action rules. State-machine rules and custom scripts are not supported in the visual editor.
When you open a new rule in the workflow constructor, it contains an empty on-change rule named Rule 1.
To change the rule type, click the icon and select another type.
To add a new rule to the workflow, click the Add rule icon in the header and choose a type from the Rule Type dialog.