Diagram of install validation path in SKAdNetwork.
Games targeting devices running iOS 14 or above should implement the network IDs for Unity Ads and associated partners in the information property list (Info.plist) file. For instructions on how to do this, see documentation on modifying the properties list.
To help publishers save time and energy, Unity provides an updated list of advertiser IDs across the industry to include in their plist files. Unity will update this list regularly as new advertising sources submit their IDs. When implemented with Unity Ads version 3.5.1 or higher, this list allows Unity and other trusted ad sources to confidently bid on publisher inventory.
For more information, read the Unity Ads iOS 14 publisher guide.