Make sure the user you assign has the right access for the product linked to the task. You can also reassign a task later, or postpone it if needed. See Postpone a task.

Assign a task to a user

1. From Tasks, find the task you want to assign.
2. Select Assign user.
3. Choose a user from the list.
4. Select Save.

Change the assignee of a task

1. From the Tasks page, open the task.
2. Select Actions, then Edit assigned user.
3. Choose a new user.
4. Select Save.