My client likes to receive SKAd Netowrk reporting, specifically SKAN installs. those do not come thru with the Pull or Master APIs.
This is important to capture all iPhone installs, since some users have privacy restrictions that cause attribution loss, which is only work around if you look at SKAN installs
https://support.appsflyer.com/hc/en-us/articles/360014104157-SKAN-aggregated-performance-report-API