What is Facebook's Aggregated Event Measurement (AEM) and how is it different from Apple's PCM?

Facebook's Aggregated Event Measurement framework is designed to provide web-to-web and app-to-web measurement in a way that is compliant with Apple's tracking policies. Functionally, it is very similar to Apple's Private Click Measurement (PCM) framework — both essentially provide a similar level of functionality as what SKAdNetwork allows for app-to-app campaigns. Notably, neither of them yet support the common web-to-app conversion path.

Facebook has not shared much about the technical details of AEM, and it's not clear if it makes use of PCM behind the scenes, or is simply a very similar solution.

Updated 8 months ago


Additional Resources

iOS 14 FAQs

What is Facebook's Aggregated Event Measurement (AEM) and how is it different from Apple's PCM?


Suggested Edits are limited on API Reference Pages

You can only suggest edits to Markdown body content, but not to the API spec.


Filters