When a visitor goes to the WP core profile view, synchronizing will be triggered. Subscription syncing is likely to always be an active part of the process due to how important it is.

Uses

TwitchPress_Systematic_Syncing->sync_user()

File

twitchpress/includes/classes/class.twitchpress-sync.php 

PHP Line

add_action( 'profile_personal_options', array( $this, 'sync_user_on_viewing_profile' ) );  

Data Synced

• Twitch subscription plan for the current user or requested user when an administrator is viewing a visitors profile.