> For the complete documentation index, see [llms.txt](https://docs.finpay.id/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.finpay.id/api-reference/finpay-money/linkage/registration/verify-otp.md).
# Verify OTP
This is a service used to verify or authenticate customers using One Time Password (OTP) to their mobile number via SMS. Customers need to input the unique random number generated by Finnet for the authentication process.
### Technical Specification
```
Service Code: 04
```
| Environment | Method | URL |
| ----------- | ------ | ----------------------------------------------------- |
| Development | POST | |
| Production | POST | |
### Body Request
| No | Name | Type | Mandatory | Min Length | Max Length | Description |
| -- | -------------------------- | ------ | --------- | ---------- | ---------- | ------------------------------------------------------- |
| 1 | originalPartnerReferenceNo | String | M | 1 | 64 | Transaction identifier number from partner |
| 2 | action | String | M | 1 | 10 | Purpose of the OTP verification, filled with otpLinkage |
| 3 | otp | String | M | 1 | 8 | OTP from SMS sent to customer phone number. |
#### Sample Request
```
{
"originalPartnerReferenceNo": "123456789876543431",
"action": "otpCreation",
"otp": "696969"
}
```
### Body Response
| No | Name | Type | Mandatory | Min Length | Max Length | Description |
| -- | -------------------------- | ----------------------------------------------------------------------- | --------- | ---------- | ---------- | ------------------------------------------ |
| 1 | responseCode | [Enum](/api-reference/appendix/enumeration/response-code-list.md) | M | 1 | 7 | BI SNAP Response Code. |
| 2 | responseMessage | String | M | 1 | 150 | BI SNAP Response Message. |
| 3 | originalPartnerReferenceNo | String | O | 1 | 64 | Transaction identifier number from partner |
| 4 | linkageToken | String | O | 1 | 204 | Access Token expiry time in ISO8601 format |
| 5 | phoneNo | String | O | 1 | 16 | Customer's phone number to be created |
| 6 | qParamsURL | String | O | 1 | 100 | Redirect URL for binding actions |
| 7 | qParams | [Object](/api-reference/appendix/json-object/qparams-object.md) | O | 1 | 1 | Query parameters for the qParamsURL |
| 8 | additionalInfo | [Object](/api-reference/appendix/json-object/additional-info-object.md) | O | 1 | 2 | Additional Info |
#### Sample Response
```
{
"responseCode": "2000400",
"responseMessage": "Request has been processed successfully",
"partnerReferenceNo": "78912343452347001",
"linkageToken": {},
"phoneNo": "+6281977817919",
"qParamsUrl": "https://webview.finnet.co.id/partner/creation/pin-registration",
"qParams": {
"action": "otpLinkage"
},
"additionalInfo": {
"clientId": "9719394d-af91-4f9c-9d16-6b6233a45889",
"redirectToDeepLink": "https://snapstag.finnet.co.id/health"
}
}
```
### Response Code & Message
The table below lists response codes and messages for the Verify OTP API.
| No | HTTP Code | Code | Message |
| -- | --------- | ------- | ------------------------------- |
| 1 | 200 | 2000400 | Successful |
| 2 | 400 | 4000400 | Bad request |
| 3 | 400 | 4000401 | Invalid field format {field} |
| 4 | 400 | 4000402 | Invalid mandatory field {field} |
| 5 | 401 | 4010401 | Invalid token (B2B) |
| 6 | 401 | 4010400 | Unauthorised. \[Reason] |
| 7 | 403 | 4030401 | Feature not allowed |
| 8 | 403 | 4030404 | Activity count limit exceeded |
| 9 | 404 | 4040408 | Invalid merchant |
| 10 | 500 | 5000400 | General error |
| 11 | 504 | 5040400 | Timeout |
---
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