woocommerce_delete_shop_order_transients action-hookWC 1.0

Usage

add_action( 'woocommerce_delete_shop_order_transients', 'wp_kama_woocommerce_delete_shop_order_transients_action' );

/**
 * Function for `woocommerce_delete_shop_order_transients` action-hook.
 * 
 * @param  $order_id 
 *
 * @return void
 */
function wp_kama_woocommerce_delete_shop_order_transients_action( $order_id ){

	// action...
}
$order_id
-

Where the hook is called

wc_delete_shop_order_transients()
woocommerce_delete_shop_order_transients
woocommerce/includes/wc-order-functions.php 537
do_action( 'woocommerce_delete_shop_order_transients', $order_id );

Where the hook is used in WooCommerce

woocommerce/includes/admin/class-wc-admin-reports.php 41
add_action( 'woocommerce_delete_shop_order_transients', array( __CLASS__, 'delete_legacy_reports_transients' ), 10, 1 );