> For the complete documentation index, see [llms.txt](https://ofin.gitbook.io/document/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://ofin.gitbook.io/document/contract/callback.md).

# 계약 결과 Callback

계약 완료 시, 구매자의 계약 정보 및 한도 정보를 플랫폼 서버로 전달합니다.

* 전달받은 정보를 저장 및 내부 로직에 반영해 주세요.
* 계약에 실패하는 경우 failCallbackUrl로 리다이렉트되며 Callback은 전송하지 않습니다.
* Callback 요청은  `POST` 방식으로 전송됩니다.
* 사전에 **방화벽 정보**를 확인해 주세요.
* 전송에 실패하는 경우 3분 간격으로 최대 4회 재시도 합니다.
* Callback을 받지 못한 최종 실패 건은 구매자 정보 조회로 확인해 주세요.

## Response

* **businessNumber (String) (maxLen:10)**
  * 사업자등록번호
* **companyName (String) (maxLen:50)**
  * 상호명
* **representativeName (String) (maxLen:50)**
  * 대표자명
* **bankName (String) (maxLen:10)**
  * 은행명
* **withdrawalAccountNumber (String) (maxLen:50)**
  * 일부 마스킹된 계좌번호
* **withdrawalAccountHolder (String) (maxLen:20)**
  * 일부 마스킹된 예금주
* **maxLimit (Integer) (maxLen:16)**
  * 유저 최대 한도
* **usedAmount (Integer) (maxLen:16)**
  * (재계약을 고려한) 유저 현재 이용중인 금액
* **remainingLimit (Integer) (maxLen:16)**
  * 유저 남은 한도
* **contractToken (String) (maxLen:25)**
  * 계약 토큰
* **receivableAssignmentAgreedAt (String) (maxLen:20)**
  * 후불대금채권 포괄양도 승낙계약 및 통지서 동의 일시 
* **cmsWithdrawalAgreedAt (String) (maxLen:20)**
  * CMS 출금동의 계약서 동의 일시
* **completionStatus (String) (maxLen:10)**
  * SUCCESS / FAILED
* **redirectUrl (String) (maxLen:500)**
  * 계약 완료 후 redirect 한 URL
* **completedAt (String) (maxLen:20)**
  * 계약 완료 일시

#### **Response Example**

```json
{
  "businessNumber": "5098601645",
  "companyName": "올라핀테크",
  "representativeName": "김올라",
  "bankName": "국민은행",
  "withdrawalAccountNumber": "123****5678",
  "withdrawalAccountHolder": "올라**크",
  "maxLimit": 10000000,
  "usedAmount": 0,
  "remainingLimit": 10000000,
  "contractToken": "example-contractToken",
  "receivableAssignmentAgreedAt": "2025-09-01 15:35:10",
  "cmsWithdrawalAgreedAt": "2025-09-01 15:35:40",
  "completionStatus": "SUCCESS",
  "redirectUrl": "https://ofin.co.kr/demo/success",
  "completedAt": "2025-08-31 15:37:00"
}

```


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