To view failed orders,

1. Go to the Magento Admin Panel.
2. On the left navigation bar, click on WooCommerce Magento Integration.
   The menu appears as shown below:
   
3. Click on Failed Orders.
   The Failed Order Grid page will appear as shown below:
   
4. This page displays the failed orders with the order id and the reason for the failure.
5. To view order data, click on the View button. All the data will be displayed.