WordPress at a glance
action is not described

woocommerce_settings_page_init action-hook . WC 1.0

Usage

add_action( 'woocommerce_settings_page_init', 'action_function_name_7597' );
function action_function_name_7597(){
	// action...
}

Where the hook is called

WC_Admin_Menus::settings_page_init()
woocommerce_settings_page_init
woocommerce/includes/admin/class-wc-admin-menus.php 108
do_action( 'woocommerce_settings_page_init' );

Where in WP core the hook is used WooCommerce

woocommerce/includes/admin/class-wc-admin-api-keys.php 21
add_action( 'woocommerce_settings_page_init', array( $this, 'screen_option' ) );
woocommerce/includes/admin/class-wc-admin-webhooks.php 21
add_action( 'woocommerce_settings_page_init', array( $this, 'screen_option' ) );
woocommerce/includes/tracks/events/class-wc-settings-tracking.php 33
add_action( 'woocommerce_settings_page_init', array( $this, 'track_settings_page_view' ) );