authorize.net not 'Confirming" orders

-- url of the page with the problem -- : www.neverhungover.com/ns/checkout
-- HikaShop version -- : 2.3.1
-- Akeeba Subscriptions: 4.0.1
-- Joomla version -- : 3.3.0
-- PHP version -- : 5.4.24
-- Browser(s) name and version -- : CHROME 35.0.1916.114

I have Authorize.net hooked up and processing with my store, but it does not change the order status to "confirmed" after purchase. Please let me know what needs to happen. My fulfillment center will not fill an order unless it says 'confirmed"

Hi,

This means that HikaShop is not receiving the payment notifications from Authorize.net
Here is a documentation for the same issue with PayPal:
www.hikashop.com/support/documentation/i...or.html#notification
Please follow the documentation and you should hopefully find clues on what's going on, leading to the solution.

I switched the API from SIM to AIM and that fixed the problem.