How iOS 14's New Privacy Settings Impacts Facebook Ads

The Bottom Line

You are going to lose the ability to track people clicking your ads on Apple devices, but only around 30% of traffic.

All app must prompt for user to opt in data collection
Reporting of event can be delayed for up to three days
Event can only be track in a single session
No more view-through attribution
No cross device tracking
No cross app/browser tracking
Cannot breakdown conversion by demographic (age, gender, region)
Conversion/Event report to campaign level. For ad set/ ad level, data will be attribute by a statical model
LTV value will not be available

Event data will restrict to maximun of nine campaigns and five ad sets per campaign for every Facebook Ads account.
Eight-pixel event cap per domain for optimization
Attribution window will become 7-day post click

Less conversion than before, which will make metric like CPA & Conversion rate perform worse than before

Audience size of website remarking and customer list will decrease

Performance of automated campaign will be affected as less data can be used

Performance of dynamic ad will be affected as less data can be used

Performance of lookalike audience will be affected as less data can be used

Less conversion if you have a attribution model that is longer than 7 days click

Less conversion if you count view through conversion