Asana-rules Rules are available for all Premium, Business and Enterprise customers. Rules allow you to streamline routine tasks and establish workflows with ease. For a Rule to work, you need a trigger that activates the Rule and an action that is performed automatically. For example, a Rule can be to automatically assign a task (action) when a due date is set (trigger). You can trigger a Rule from anywhere (web, mobile, external integrations). If you update something on a task, Asana checks to see if that task is in any projects with Rules, and if your action is the trigger on any of those Rules.