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When viewing the transactions the following authorize.net documents will provide you more details on the various response codes. These should help you determine the exact cause of the failed transaction:
- httphttps://developer.authorize.net/toolsapi/responsereasoncodereference/responseCodes.html
- https://support.authorize.net/authkb/index?page=content&id=A50
- http://www.authorize.net/support/CNP/helpfiles/Account/Settings/Security_Settings/Fraud_Settings/Address_Verification_System_(AVS).htm
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