Woo export CSV - add custom fields

woo_export_add_custom_fields.php

<?php
////// woo export add custom fields //////
// add custom column headers
function wc_csv_export_modify_column_headers( $column_headers ) {
	$new_headers = array(
		'delivery_name' => 'Location',
		'odel_date' => 'Date',
	);
	return array_merge( $column_headers, $new_headers );
}
add_filter( 'wc_customer_order_csv_export_order_headers', 'wc_csv_export_modify_column_headers' );

// set the data for each for custom columns
function wc_csv_export_modify_row_data( $order_data, $order ) {
	$custom_data = array(
		'delivery_name' => get_post(get_field('delivery_name', $order->id))->post_title,
		'odel_date' => get_field('odel_date', $order->id),
	);
	return array_merge( $order_data, $custom_data );
}
add_filter( 'wc_customer_order_csv_export_order_row', 'wc_csv_export_modify_row_data', 10, 2 );
///// end of woo export custom fields ////