Will users who opt IN via AppTrackingTransparency also still be tracked via SKAdNetwork?

Yes, users opting into app tracking via ATT will be tracked via SKAdNetwork in parallel.

This means that you will always get aggregate data via SKAdNetwork, and additionally receive device-level data via tracking links for the same user if they opt in. Unfortunately, due to Apple's intentional SKAdNetwork design limitations, there is no way to deduplicate these two data sources. This is why we expect SKAdNetwork will quickly become the standard option for transactional purposes like billing, with the limited amount of device-level data still being useful for deeper insights and campaign optimization.

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