Use
Preconditions for a characteristic value:
You use a precondition to define that you can only select the characteristic value if a certain value is assigned to another characteristic.
You can use a precondition to define that you can only select the value RACING_HANDLEBAR for characteristic HANDLEBAR if you select RACING_BICYCLE as the model.
If values are selected that are inconsistent with preconditions, you see an inconsistency message.
See Characteristic Value Preconditions (Example).
Actions for a characteristic value
You can define actions for individual characteristic values. If you select a value for which an action is defined, the action is processed automatically.
You can use an action to define that the value 21_GEARS is assigned to characteristic GEARS if you select the model RACING BICYCLE.