We just switched from EPN to Authorize.Net and since than we're having issues with a lot of missing orders (at least 5-10%) that gets charged but not recorded as approved on our OpenCart (still shows in Missing Orders, without any notes in the history tab).
Authorize.net support (and a supervisor) couldn't help us because the payment approved and they don't support 3rd party integrations directly.
Do you guys have any idea?
I'm running OC 1.5.6.4 and the payment module name in the admin panel is "Authorize.Net (AIM)" although I also have an authorizenet_sim.php file in catalog/controller/payment, but I don't see this option in the Admin side...
Thank you!
EDIT: I switched back to ePN so its irrelevant for me, but I guess other people may have this issue too so if you have an answer it's not a bad idea to have it archived here for them
