To update the order of tasks in a project task list, the user needs manage permissions on the project-planning-data feature.
The id of the project.
The id of the task list.
The id of the task.
The order of the task in the list.
The id of the list to move the task to or to change the order for.
The order of the task in the list. If null, the task is moved to the end of the list.