WordPress at a glance
filter is not described

woocommerce_cart_item_backorder_notification filter-hook . WC 1.0

Backorder notification.

Usage

add_filter( 'woocommerce_cart_item_backorder_notification', 'filter_function_name_302', 10, 2 );
function filter_function_name_302( $html, $product_id ){
	// filter...

	return $html;
}
$html
-
$product_id
-

Where the hook is called

In file: /templates/cart/cart.php
woocommerce_cart_item_backorder_notification
woocommerce/templates/cart/cart.php 92
echo wp_kses_post( apply_filters( 'woocommerce_cart_item_backorder_notification', '<p class="backorder_notification">' . esc_html__( 'Available on backorder', 'woocommerce' ) . '</p>', $product_id ) );

Where in WP core the hook is used WooCommerce

Usage not found.