To issue a refund on an order that is already invoiced in Magento


DO NOT USE the Credit Memo button from the Information Section of the Order as seen below



WARNING: If you click on this Credit Memo button you will get the following warning. Since we want to make sure the customer gets their refund online, make sure you hit Cancel if you get this message


First click on the Invoices Tab and then Click on the Invoice you want to Refund



Once you are viewing the Invoice you want to Refund, click the Credit Memo button



Then specify the Qty to Refund for Each Item on the Order and then click the Update Qty's Button


In this example we are going to refund 3 of the NCR Receipt Printers

This will update the line item detail as seen here


Once you have finished making changes to the Credit Memo and you are ready to issue the Refund


Click on the Refund button



You will then get a notification that the credit memo has been created 


If you login to your Authorize.net, Paypal, etc account you will then see the Refund



Example of an Authorize.net Refund




Note: After completing the Credit Memo process in Magento make sure you create a Return transaction in CounterPoint to reflect the items that you manually refunded in Magento