Merchant Self-Enrollment API

Enroll account information collected directly by the merchant. Includes Open Banking account enrollment fields.


Merchant Self-Enrollment

Enroll a direct debit account based on withdrawal consent information collected independently by the merchant.

API Information

POST/v1/api/acnt/reg/self
Content-Typeapplication/json; charset=UTF-8
테스트https://tbnpay.settlebank.co.kr/v1/api/acnt/reg/self
운영https://npay.settlebank.co.kr/v1/api/acnt/reg/self

Request Parameters

hdInfoAN(50)Alphanumeric, up to 50 bytes*
Message information code.
*Fixed value
mchtIdAN(8)Alphanumeric, up to 8 bytes*
Merchant ID.
mchtTrdNoAN(100)Alphanumeric, up to 100 bytes*
Merchant order number.
payerNoAN(20)Alphanumeric, up to 20 bytes*
Payer number.
mchtCustIdAN(100)Alphanumeric, up to 100 bytes*AES-256AES-256/ECB/PKCS5Padding + Base64 (Standard)
Customer ID.
reqDtAN(8)Alphanumeric, up to 8 bytes*
Request date (yyyyMMdd).
reqTmAN(6)Alphanumeric, up to 6 bytes*
Request time (HH24MISS).
mchtCustNmAN(30)Alphanumeric, up to 30 bytes*AES-256AES-256/ECB/PKCS5Padding + Base64 (Standard)
Account holder name (Korean: 3 bytes per character).
uiiAN(10)Alphanumeric, up to 10 bytes*AES-256AES-256/ECB/PKCS5Padding + Base64 (Standard)
Date of birth (yyMMdd) or business registration number (10 digits).
*Business registration number must exclude hyphens
bankCdAN(3)Alphanumeric, up to 3 bytes*
Bank code.
custAcntNoAN(15)Alphanumeric, up to 15 bytes*AES-256AES-256/ECB/PKCS5Padding + Base64 (Standard)
Account number (no hyphens, minimum 9 digits, maximum 15 digits).
custIpAN(15)Alphanumeric, up to 15 bytes
Customer IP address.
pktHashAN(200)Alphanumeric, up to 200 bytes*SHA-256(실시간 생성)
SHA-256 HMAC signature.
NOTE

Signature composition

mchtId + mchtCustId + reqDt + reqTm + custAcntNo + hashKey

Response Parameters

outStatCdAN(4)Alphanumeric, up to 4 bytes*0021
Transaction status code.
0021: Success 0031: Failure
outRsltCdAN(4)Alphanumeric, up to 4 bytes*0000
Decline code.
*ST08: If the account is already enrolled, existing account information is returned
outRsltMsgAN(300)Alphanumeric, up to 300 bytes*Processed successfully.
Result message.
mchtCustIdAN(100)Alphanumeric, up to 100 bytes*AES-256AES-256/ECB/PKCS5Paddingkimhecto
Customer ID.
*실제 응답값은 AES-256 암호화된 값입니다. 복호화 후 사용하세요.
bankCdAN(3)Alphanumeric, up to 3 bytes*004
Bank code.
custAcntNoAN(15)Alphanumeric, up to 15 bytes*234*******123
Account number (masked).
custAcntKeyAN(50)Alphanumeric, up to 50 bytesd894kjd93kd9
Account key.
mchtTrdNoAN(100)Alphanumeric, up to 100 bytes*OID201902210001
Merchant order number.
trdNoAN(40)Alphanumeric, up to 40 bytes*STFP_FIRM12345678901234567890
Transaction reference number.
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