WordPress at Your Fingertips
filter is not described

woocommerce_tracker_event_recurrence filter-hook . WC 1.0

Usage

add_filter( 'woocommerce_tracker_event_recurrence', 'filter_function_name_3102' );
function filter_function_name_3102( $string ){
	// filter...

	return $string;
}
$string
-

Where the hook is called

WC_Install::create_cron_jobs()
woocommerce_tracker_event_recurrence
woocommerce/includes/class-wc-install.php 547
wp_schedule_event( time() + 10, apply_filters( 'woocommerce_tracker_event_recurrence', 'daily' ), 'woocommerce_tracker_send_event' );

Where in WP core the hook is used WooCommerce

Usage not found.