WordPress at a glance
action is not described

woocommerce_product_data_panels action-hook . WC 1.0

Usage

add_action( 'woocommerce_product_data_panels', 'action_function_name_3968' );
function action_function_name_3968(){
	// action...
}

Where the hook is called

In file: /includes/admin/meta-boxes/views/html-product-data-panel.php
woocommerce_product_data_panels
woocommerce/includes/admin/meta-boxes/views/html-product-data-panel.php 53
do_action( 'woocommerce_product_data_panels' );

Where in WP core the hook is used WooCommerce

woocommerce/includes/admin/marketplace-suggestions/class-wc-marketplace-suggestions.php 28
add_action( 'woocommerce_product_data_panels', array( __CLASS__, 'product_data_panels' ) );