Google Tag Manager for WordPress (DuracellTomi): Exclude orders with status failed

gtm4wp-exclude-failed-orders.php

<?php
/**
 * Google Tag Manager: Exclude orders with status failed (only paid statuses)
 *
 * @param $tag
 *
 * @return string
 */
function googletagmanager_getthetag( $tag ) {
  global $wp;

  if ( function_exists('is_order_received_page') && is_order_received_page() ) {
    if ( ! empty( $wp->query_vars['order-received'] ) ) {

      $order = wc_get_order( absint( $wp->query_vars['order-received'] ) );

      // Order is not paid, remove the tag
      if ( !empty($order) && !$order->is_paid() ) {
        $tag = '';
      }

    }
  }

  return $tag;
}
add_filter( 'gtm4wp_get_the_gtm_tag', 'googletagmanager_getthetag', 10, 1 );