Task
If Task is specified on the PR summary screen, that value is used on the details lines and the field is disabled. If Project is not specified, this field is disabled until a Project is specified.
Your choice of project and task may affect which detail lines you can add:
Labor Detail Lines:
Project or task must allow time reporting.
Expense Detail Lines:
Project or task must allow expense reporting.
Item Detail Lines:
Project or task must allow item reporting.