Hi folks,
I’m excited to share that you can now create tasks, milestones and approvals with tasks 
Choose a trigger or combination of triggers, and Asana will create the task when the rule runs. You can pre-select the task name, assignee, relative due date, and more.
To create a task with a rule:
- Navigate to Customize in the top-right corner of your project
- Click + Add rule, then Create custom rule
- Choose a trigger or combination of triggers
- When the trigger is selected, click the Actions tab
- Under Create new, select Task
In this specific case, you could create the following rule:
This update is currently available to 50% of our customers and will go live for everyone by the end of the day.