Defines response fields and transaction handling behavior for authorization processing through the Remote API.

Transaction Response

Overview

The authorization response includes all submitted name/value pairs along with additional fields returned by the gateway. Responses are returned as a URL-encoded string for parsing.

Response Format

The system returns transaction results in the following format:

name1=value1,name2=value2,name3=value3

All original request parameters are included in the response, along with the fields listed below.

Response Fields

Variable	Max Size	Possible Values / Example	Description	Notes
`FinalStatus`	N/A	`success`, `badcard`, `problem`, `fraud`	Final transaction status returned after processing.	`success` = approved, `badcard` = processor decline, `problem` = non-card issue, `fraud` = blocked by fraud screening.
`Mstatus`	N/A	Deprecated	Legacy status field.	Superseded by `FinalStatus`.
`success`	N/A	Deprecated	Legacy success indicator.	Superseded by `FinalStatus`.
`avs-code`	N/A	`Y`	Address Verification System response code.	Refer to AVS reference table for definitions.
`cvvresp`	N/A	`M`	CVV/CVV2 verification response.	Used for card security validation.
`resp-code`	N/A	`00`	Processor response code.	See processor response code documentation.
`auth-code`	6	`A1B2C3`	Authorization code issued by processor.	Returned on successful approvals when available.
`MErrMsg`	N/A	—	Error message returned by processor.	Present only when an error occurs.
`Errdetails`	N/A	`card-number=invalid\|email=missing`	Detailed validation or fraud error output.	Requires FraudTrack2. Pipe-delimited format.
`aux-msg`	N/A	—	Additional processor message.	Supplemental informational output.
`orderID`	25	`123456789`	Unique transaction identifier.	Used for downstream actions such as voids and refunds.
`user-agent`	N/A	`Mozilla/5.0`	Client or browser identifier.	Used for logging and tracking purposes.
`ipaddress`	15	`123.123.123.123`	IP address of submitting system or customer.	Used for fraud analysis and audit trails.
`Duplicate`	3	`yes`	Indicates duplicate `orderID` submission.	Returned values match original transaction.
`sresp`	1	`A`, `C`, `D`, `P`, `X`, `E`	Simplified response status code.	`A` approved, `C` call auth center, `D` declined, `P` pick up card, `X` expired, `E` error.