Apple’s App Tracking Transparency policy came into effect on April 26 with the release of iOS 14.5. The new regulations require apps to obtain the device owner’s consent to collect and share their data across third-party apps for ad targeting purposes. 

The update affects advertising across all of Facebook’s platforms, including Instagram, Messenger and WhatsApp. In its prompt, Facebook tells users opting-in helps keep its apps free of charge.

In anticipation of these changes, Facebook provided advertisers with updates on how to prepare and minimize ad campaign disruption. The company also introduced a Resource Center tab in Facebook Ads Manager, a detailed guide and webinars for different regions. 

“Advertisers should plan for less information for measurement, optimization, and targeting,” advises the guide, which also notes that ads could be less effective and more costly as a result of the regulations.