I created an Asana Adoption Project. Each of my four direct reports now needs to complete each of the 20 or so tasks in this Project. How do I assign all 20 tasks to each of my direct reports at the same time?
When you click on a single task, you can choose multiple assignees (which creates a copy of the task for each person):
Also note that multiple assignees (as 1 task - multiple assignees) is against Asana’s vision because of the accountability issues that’s why you can’t assign a single task to multiple people.