A line item targeting a special ad unit will always serve to its children ad units. August 27, 2019 By CertificationAnswers A line item targeting a special ad unit will always serve to its children ad units. MAY BE FALSE TRUE NONE Related content Related posts:This is your clients hierarchy: >Top level ad unit:…If a standard line item is under-delivering what can…Ad Manager takes into account 28 days of historical…Click Tracking line items are possible in Ad Manager 360.