Walled gardens. Media fragmentation. Closed ecosystems. These are all things that might strike fear into the heart of any marketer trying to get to the bottom of their attribution model. The Drum, in partnership with 4C Insights, invite you to come to this fascinating session to learn insights about closed ecosystems. How are brands bridging walled gardens to achieve cross-channel consistency? What technologies are needed? And how are agencies serving as navigators in this new world order?