Shopping Cart and ECommerce Software
Solutions from PDG Software, Inc.^®

If you are using Authorize.Net ,you may be experiencing intermittent problems on your web site resulting in the message “AIM returned unexpected data.”

Due to formatting changes in the information that Authorize.Net is expecting to receive from your web store, you will need to enable a configuration variable in your PDG Commerce program to correct this problem.

To make this change, connect to your web site using FTP or a file manager program.  Browse to the PDG_Commerce folder (usually located in the cgi or cgi-bin folder on your web site).  Find the shopper.conf file, and download it.

Save a backup copy of the shopper.conf file, then open it in a text editor.  At the end of the file, add the following line:
AIM_AUTHORIZE_V2_AIM_3.1_ONLY=yes

Save the file back to your web site.

You should also view the Authorize.Net settings in your Commerce Administrator and verify that the “Authorize.Net Version” field is set to AIM 3.1.

Please note that this resolution applies to the latest patches of PDG Commerce version 5, PDG Commerce version 4, and PDG Shopping Cart version 4.