If a user opts out of iOS targeting and clicks on a Facebook Lead Ad and becomes a lead and is retargeted by FB Retarget Leads for a Sales Campaign Ad, clicks and buys immediately… Does the FB Lead Gen campaign show a Lead? You send the lead and sale via Conversion API.
Does the FB Retarget Lead Campaign show a sale?
No and No. Cannot because the opted out of iOS tracking!
Does this apply to desktop?
NO, just iOS
If one user clicks (becomes a lead) and then buys (becomes a sale), will both be tagged?
No, Facebook can only register one event per user, opting for the highest priority event you specified.
What are the Facebook Audience sources that aren’t interrupted (as much?) by iOS 14?