Snippet to map WooCommerce Shipping Method name to another name (Shipping Meta). PluginHive Plugins -https://www.pluginhive.com/

functions.php

/**
 * Snippet to map woocommerce shipping method name to another name.
 * Created at : 14 Sep 2018
 * Updated at : 14 Sep 2018
 * PluginHive Plugins : https://www.pluginhive.com/plugins/
 * Gist Link : https://gist.github.com/varun-pluginhive/14fd167b4fb127a6a4b8af2513fc4fae
 */
if( ! function_exists('ph_map_wc_shipping_method_name') ) {
	function ph_map_wc_shipping_method_name( $shipping_rates ) {
		$shipping_method_name_map_arr = array(
			'Flat rate 1'	=>	'FedEx',				// Shipping Name in Cart => Name to be displayed in order page with Shipping
			'Free shipping'	=>	'UPS',
		);

		$meta_name_to_set = 'Shipping Company';			// Title for your mapped name


		foreach( $shipping_rates as &$shipping_rate ) {
			$rate_title = $shipping_rate->get_label();
			if( ! empty($shipping_method_name_map_arr[$rate_title]) ) {
				$shipping_rate->add_meta_data( $meta_name_to_set, $shipping_method_name_map_arr[$rate_title] );
			}
		}
		return $shipping_rates;
	}

	add_filter( 'woocommerce_package_rates', 'ph_map_wc_shipping_method_name' );
}