I would like to have a Rule Action that unassigns a task.
Specifically, I’m using a Kanban board style. When a tasks is moved to the “Current” section, I assign it. When a task is moved to “Upcoming” I’d like to unassign it.
Currently this does not appear possible via the Custom Rule dialog.
FYI, while not available in Asana itself, this is available as a rule action in Flowsana’s If-Then Rules:
You can also create a dummy guest account and assign to it. See The coolest Asana rules 😎 for other ideas.
Hi all 
Great news! We have just begun rolling out Inverse Rule actions today and this includes a “ Unassign task ” action 
For more info, you can take a look at the announcement post:
Looking forward to hearing your feedback in the comments 
