--- id: PO1 name: Baseline Item Data purpose: To specify basic and most frequently used line item data elements: - { ref: PO101, id: '350', req: O } - { ref: PO102, id: '330', req: X } - { ref: PO103, id: '355', req: O } - { ref: PO104, id: '212', req: X } - { ref: PO105, id: '639', req: O } - { ref: PO106, id: '235', req: X } - { ref: PO107, id: '234', req: X } - { ref: PO108, id: '235', req: X } - { ref: PO109, id: '234', req: X }