woocommerce_admin_order_data_after_order_details action-hookWC 1.0

Usage

add_action( 'woocommerce_admin_order_data_after_order_details', 'wp_kama_woocommerce_admin_order_data_after_details_action' );

/**
 * Function for `woocommerce_admin_order_data_after_order_details` action-hook.
 * 
 * @param  $order 
 *
 * @return void
 */
function wp_kama_woocommerce_admin_order_data_after_details_action( $order ){

	// action...
}
$order
-

Where the hook is called

WC_Meta_Box_Order_Data::output()
woocommerce_admin_order_data_after_order_details
woocommerce/includes/admin/meta-boxes/class-wc-meta-box-order-data.php 390
<?php do_action( 'woocommerce_admin_order_data_after_order_details', $order ); // phpcs:ignore WooCommerce.Commenting.CommentHooks.MissingHookComment ?>

Where the hook is used in WooCommerce

woocommerce/includes/tracks/events/class-wc-order-tracking.php 19
add_action( 'woocommerce_admin_order_data_after_order_details', array( $this, 'track_order_viewed' ) );