[WooCommerce Xero] Send orders as Draft Invoices rather than Awaiting Payment

wc-xero-send-orders-as-draft-invoices.php

<?php

add_filter( 'woocommerce_xero_invoice_to_xml', 'change_xero_invoice_status_to_draft' );

function change_xero_invoice_status_to_draft($xml) {
	// Search the XML data for AUTHORISED and replace with DRAFT
	$xml = str_replace( 'AUTHORISED' , 'DRAFT' , $xml);
  
	// Return the modified data
 	return $xml;
}