The merchant account company has (claimed they have) made the changes needed for this to work. We've tested again - and are seeing the same (lack of) results.
The 40th field in the response being blank in every case is what is really confusing me. It seems based on the TransResponse file you sent over that we should be getting SOMETHING back - even if it's an error.
In an effort to get to the bottom of this - here is everything we are posting, and the responses we are getting back. I've X'd out or removed the sensitive information.
We are posting to:
https://secure.authorize.net/gateway/transact.dll
Post Data:
x_Version=3.1&x_Delim_Data=True&x_Login=XXXXXX&x_Amount=46.25&x_Card_Num=XXXXXXXXXXXXXXXX&x_Exp_Date=XXXXXX&x_Address=XXXXXXX&x_Zip=XXXXX&x_first_name=XXXXX&x_last_name=XXXXXXX&x_city=San Diego&x_state=CA&x_country=US&x_phone=XXX-XXX-XXXX&x_email=XXXXX@XXXXXX.COM&x_Type=AUTH_CAPTURE&x_Invoice_Num=338302&x_tran_key=XXXXXXXXXXXXXXXX&x_authentication_indicator=05&x_cardholder_authentication_value=AAABAIVCIhAJQDJRU0IiAAAAAAA%3D&x_card_code=XXX&x_description=URL.com+Order(https://www.URL.com)
Response:
1,1,1,This transaction has been approved.,033259,Z,5067286049,338302,URL.com Order(https://www.url.com),46.25,CC,auth_capture,,XXXXX,XXXXXX,,XXXXXXX,San Diego,CA,XXXXX,US,XXX-XXX-XXXX,,XXXXX@XXXXXXXX.com,,,,,,,,,,,,,,25F7B33C8F919242B3EF15FAD8C5C1A1,M,,,,,,,,,,,,XXXX3770,Visa,,,,,,,,,,,,,,,,
So - we are posting the fields - but getting nothing in the response.
Please help!