The cart page features a "Share Cart" button, allowing admins to generate a unique cart URL for easy cart sharing with customers. Additionally, admins can manage generated cart URLs by clearing them from the "WC > Status > Tools" section.

share_woocommerce_cart.php

<?php

/**
 * Function to get cart data from session
 * 
 */
function get_cart_data_from_session(){
			$cart_session = array(
				'cart' => '',
				'cart_totals'  => '',
				'applied_coupons'  => '',
				'coupon_discount_totals'  => '',
				'coupon_discount_tax_totals'  => '',
			);

			foreach($cart_session as $key => $value) {
				$cart_session[$key] = WC()->session->get( $key );
			}

			return $cart_session;
}

/**
 * Function to extract hash from URL and update session
 * 
 */
function set_session_cart_from_url(){
		if( isset($_REQUEST['share'])) {
			$cart_url_hash = $_REQUEST['share'];
			$cart_url_option_name = 'wc_cart_url_' . $cart_url_hash;
			$cart_data = get_option($cart_url_option_name);
				if ($cart_data) {
					foreach($cart_data as $key => $value) {
						WC()->session->set( $key, $value );
					}
			}	
		}
}

/**
 * Function to add share cart button before cart
 * 
 */
function add_share_cart_button(){
		if (current_user_can('manage_woocommerce')) {
				if (isset($_POST['wc_cart_url'])) {
					$session_cart_data = get_cart_data_from_session();
					$cart_url_hash = wp_hash( serialize($session_cart_data) );
					$cart_url_option_name = 'wc_cart_url_' . $cart_url_hash;
					$cart_url = wc_get_cart_url() . '?share=' . $cart_url_hash; 
					update_option($cart_url_option_name, $session_cart_data);
					wc_print_notice(__("Share the cart using this URL: $cart_url", 'woocommerce'), 'success');
        			
					
				} else {
				?>
				<form method="post">
					<button type="submit" name="wc_cart_url"><?php _e('Share cart', 'woocommerce'); ?></button>
				</form>
				<?php
			}
		}
}

add_action( 'woocommerce_before_cart', 'add_share_cart_button' );
add_action('woocommerce_load_cart_from_session', 'set_session_cart_from_url', 1);


add_filter( 'woocommerce_debug_tools', 'add_clear_wc_cart_url_tool' );

/**
 * Function for `woocommerce_debug_tools` filter.
 * 
 */
function add_clear_wc_cart_url_tool( $tools ) {

	$wc_cart_url_tool = array( 
		'wc_cart_url_tool' => array(
			'name'     => 'Clear Generated Cart URLs',
			'button'   => 'Clear',
			'desc'     => 'This tool deletes all the cart urls saved in the database',
			'callback' => 'clear_wc_cart_url',
			'disabled' => false,
		),
	);

	$tools = array_slice( $tools, 0, 2, true ) + $wc_cart_url_tool + array_slice( $tools, 2, NULL, true );

	return $tools;

}


/**
 * Callback function wc_cart_url_tool
 * 
 */
function clear_wc_cart_url() {
	global $wpdb;

	$all_cart_urls = $wpdb->get_results( "SELECT option_name FROM $wpdb->options WHERE option_name LIKE 'wc_cart_url_%'" );

	foreach( $all_cart_urls as $option ) {
    	delete_option( $option->option_name );
	}
	return 'All Cart URLs has been deleted!';
}