Why the response I received does not have the transaction ID?

[sanafit139]

One of my customers transaction had the response below, if error code 3.
Why the the response does not have the transaction ID? the transaction appears in the reports as approved.
Why if there is a code error return?

transactionResponse": {
"responseCode": "3",
"authCode": "",
"avsResultCode": "P",
"cvvResultCode": "",
"cavvResultCode": "",
"transId": "0",
"refTransID": "",
"transHash": "",
"testRequest": "0",
"accountNumber": "XXXX6905",
"accountType": "Visa",
"errors": [{
"errorCode": "11",
"errorText": "A duplicate transaction has been submitted."
}
],
"transHashSha2": "",
"SupplementalDataQualificationIndicator": 0
},
"refId": "123456",
"messages": {
"resultCode": "Error",
"message": [{
"code": "E00027",
"text": "The transaction was unsuccessful."
}
]
}
}

[bgmiuchack]

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[bgmiuchack]

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