Loop though the Cart items

Looping through the Cart Items is straightforward and achievable through the code:

    $cart_items = WC()->cart->get_cart();
    foreach ( $cart_items as $cart_key => $item )
        {
            //custom code
        }

When the cart include products from different shops ( within the MultiSite Network ), the same code can be used. Still, a switch to the product shop is required, for the inner code to be able to correctly retrieve the data. The easiest approach will be to add 2 actions as the example:

    $cart_items = WC()->cart->get_cart();
    foreach ( $cart_items as $cart_key => $item )
        {
            do_action( 'woocommerce/cart_loop/start', $item );
            
            //custom code
            
            do_action( 'woocommerce/cart_loop/end', $item );
        }