While preparing a new campaign for launch, an ad ops specialist notices that they can't generate or download a tag sheet for a placement. After confirming the placement is active, which underlying component must the specialist investigate first?

Campaign Manager 360 typically blocks tag export for a display placement when the placement does not have a default ad . The default ad must use an eligible image or display creative with a primary asset that matches the placement dimensions. An active placement alone is not enough because the tag still needs an eligible fallback ad to serve. This requirement should be checked before investigating unrelated advertiser, publisher, or landing page settings.