Facebook continues to warn advertisers about the effects of the privacy and tracking changes that Apple has planned for iOS 14. While a
pair of earlier reports
indicated Facebook’s concerns, the company has now published a blog post detailing how advertisers will be affected by iOS 14’s new anti-tracking features.
In the blog post, Facebook explains that it and many advertising partners rely on the Identifier for Advertisers (IDFA) feature. This is what allows advertisers to track users across different apps and websites. With iOS 14, however, Apple is adding a new privacy protection such that developers will be required to ask for permission before tracking a user across apps or websites.
Facebook now says that it will not collect IDFA through its own apps on iOS 14 devices because of the changes to Apple’s policy. The company says that this is not a change it wants to make, but one that is “forced” by Apple’s iOS 14 changes and one that will have a drastic effect on its Audience Network ad platform for developers.
For developers and publishers using Audience Network, our ability to deliver targeted ads on iOS 14 will be limited. As a result, some iOS 14 users may not see any ads from Audience Network, while others may still see ads from us, but they’ll be less relevant. Because of advertisers’ reduced ability to accurately target and measure their campaigns, app developers and publishers should expect lower CPMs on Audience Network and likely other ad networks on iOS.