Why is there a delay in the reporting data that is synced?
Connector: Apple App Store - App Analytics Reports
This is a known 72-hour delay due to the functionality of the Apple App Analytics reports. App Analytics data may be delayed up to 72 hours. The affected tables can be found in the Analytics section of our Documentation.
The following information can be found in our documentation here:
Initial import fetches data from Apr 01, 2015 UTC and each incremental sync fetches data for last four days. App Analytics data may be delayed up to 72 hours. Refer the Tables for Analytics section for details.
This is a limitation of Apple Reporting.