---
title: "Errors"
slug: "errors"
updated: 2025-03-10T17:51:55Z
published: 2025-03-10T17:51:55Z
canonical: "api-docs.blinkpayment.co.uk/errors"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://api-docs.blinkpayment.co.uk/llms.txt
> Use this file to discover all available pages before exploring further.

# Errors

## **Errors and HTTP responses**

Blink Payment utilises standard HTTP response codes to signify the outcome of an API request. Here's a general overview:

- Codes in the 2xx range signify success.
- Codes in the 4xx range represent errors based on the information given, like missing a necessary parameter, request conflicts, or unauthorised access.
- Codes in the 5xx range point to issues with Blink Payment's servers. These instances are uncommon.

### **HTTP response code meanings**

| HTTP RESPONSE CODES | NAME | DESCRIPTION |
| --- | --- | --- |
| 200 | OK | Everything worked as expected. |
| 201 | Created | New response created. |
| 400 | Bad Request | Often due to missing a required parameter. |
| 401 | Unauthorized | No valid API key provided. |
| 402 | Request failed | The parameters were valid but the request failed. |
| 403 | Forbidden | The API key doesn't have permissions to perform the request. |
| 404 | Not Found | The requested resource doesn't exist. |
| 409 | Conflict | Conflicts with another request (perhaps using the same key). |
| 429 | Too Many Requests | Too many requests hit the API too quickly. |
| 500 | Bad Request | Something went wrong. |

### [**​**](https://docs.blinkpayment.co.uk/docs/api-reference/errors-and-responses#generic-messages)**Generic messages**

| CODE | TITLE | MESSAGE | NOTES |
| --- | --- | --- | --- |
| 201 | Success | Success | Access token/ Payment Intent is created |
| 400 | Validation error | Api key is required | If API key is not present, the create token request will return this status |
| 400 | Validation error | Secret key is required | If secret key is not present, create token request will return this status |
| 400 | Validation error | Amount is required | If a proper amount is not present, create intent request will return this status CC - 1 (min amount) DD - 1.01(min amount) OB - 0.01(min amount) |
| 400 | Validation error | Return url is required | If return url is not present, create intent request will return this status |
| 400 | Validation error | Notification url is required | If notification url is not present, create intent request will return this status |
| 400 | Validation error | Payment type is required | If payment type is not present, create intent request will return this status Supported payment types - credit-card, direct-debit, open-banking Allowed payment types of merchant account are returned in create token request |
| 400 | Validation error | Currency is required | If currency is not present, then create intent request will return this status Supported currency - three digit ISO formatted code Default currency - GBP |
| 400 | Validation error | Payment Intent is required | If payment intent is not present, this status will be returned |
| 401 | Authorisation error | Payment Intent has expired | If the payment intent is created before 30 minutes or it has been used for one payment type already, then this status will be returned |
| 401 | Authorisation error | Unauthorised request | If the passed access_token in header, is invalid, then this status will be returned |
| 401 | Authorisation error | Access Token expired | If the access_token is created before 30 minutes, then this status will be returned |
| 403 | Authorisation error | Forbidden request | If Blink API status is not active in merchant account, then this status will be returned |

### **Card payments**[**​**](https://docs.blinkpayment.co.uk/docs/api-reference/errors-and-responses#card-payments)

| CODE | TITLE | MESSAGE | NOTES |
| --- | --- | --- | --- |
| 200 | Captured | Payment successful | If payment is successfully processed through credit card, then this status will be returned |
| 200 | Approved | Delay Capture payment successful | If delay capture payment is successful, then this status will be returned |
| 200 | Success | Rerun successfully | If rerun request is successfully completed then this status will be returned. |
| 200 | Success | Captured successfully | If transaction is captured successfully before predefined delay capture duration, then this status is returned. |
| 400 | Validation error | Payment Token is required | If payment token is not present, credit cards request will return this status |
| 400 | Validation error | Device timezone is required | If 3DS authentication is enabled, device timezone is needed for Credit Cards request |
| 400 | Validation error | Device capabilities is required | If 3DS authentication is enabled, device capabilities is needed for Credit Cards request |
| 400 | Validation error | Device screen resolution is required | If 3DS authentication is enabled, device screen resolution is needed for Credit Cards request |
| 400 | Validation error | Device accept language is required | If 3DS authentication is enabled, device accept language is needed for Credit Cards request |
| 400 | Validation error | Remote address is required | If 3DS authentication is enabled, remote address is needed for Credit Cards request |
| 400 | Validation error | Customer name is required | If customer name is not present, this status will be returned |
| 400 | Validation error | Customer email is required | If customer email is not present, this status will be returned |
| 400 | Validation error | Transaction must be in approved state | For Captures Request, transaction must be in approved status |
| 400 | Validation error | Transaction must be preauth type or with delay capture details | For Captures Request, transaction type must be preauth or with delay capture details |
| 400 | Validation error | Amount is required | For Captures Request, if transaction type is “verify”, then amount is required. |
| 500 | 3DS authentication required | 3DS authentication required | If any of the 3DS related details are missing, then this status will be returned |
| 500 | Finished | Missing Cardcvv | If CVV details is not provided during card payment, then this status will be returned |
| 500 | Finished | Authentication Rejected By Issuer - Cardholder Not Enrolled In Service | If 3DS authentication is rejected, then this status will be returned |
| 500 | Finished | 3DS declined | If 3DS is declined while authenticating, then this status will be returned |
| 500 | Rejected | Payment rejected | if after capturing the payment if it’s rejected due to any issue, then this status will be returned |

### **Open banking**[**​**](https://docs.blinkpayment.co.uk/docs/api-reference/errors-and-responses#open-banking)

| CODE | TITLE | MESSAGE | NOTES |
| --- | --- | --- | --- |
| 200 | Success | Success | If payment is successful, then this status will be returned |
| 400 | Validation error | Customer name is required | If customer name is not present, this status will be returned |
| 400 | Validation error | Customer email is required | If customer email is not present, this status will be returned |
| 500 | Failed | Failed | If payment is not successful, then this status will be returned |

### **Direct debit**[**​**](https://docs.blinkpayment.co.uk/docs/api-reference/errors-and-responses#direct-debit)

| CODE | TITLE | MESSAGE | NOTES |
| --- | --- | --- | --- |
| 200 | Pending Submission | Pending Submission | If payment is successful, then this status will be returned |
| 400 | Validation error | Given name is required if company name is not present | If given name is not present in the absence of company name, Direct Debits request will return this status |
| 400 | Validation error | Family name is required if company name is not present | Family name and given name, both are required in the absence of company name in Direct Debits request |
| 400 | Validation error | Company name is required if given name and family name are not present | If company name is not present along with given name and first name, Direct Debits request will return this status |
| 400 | Validation error | Email address is required | If email is not present, Direct Debits request will return this status |
| 400 | Validation error | Account holder name is required | If account holder name is not present, Direct Debits request will return this status |
| 400 | Validation error | Branch code is required | If branch code is not present, Direct Debits request will return this status |
| 400 | Validation error | Account number is required | If account number is not present, Direct Debits request will return this status |
| 401 | Authorisation error | Direct debit is not enabled to this merchant account | If merchant’s Gocardless account is not connected with their blink account, then this status will be returned |

### **Paylinks**[**​**](https://docs.blinkpayment.co.uk/docs/api-reference/errors-and-responses#paylinks)

| CODE | TITLE | MESSAGE | NOTES |
| --- | --- | --- | --- |
| 200 | Success | Paylink details fetched | If paylink details are fetched successfully then this status will be returned. |
| 200 | Success | Paylink details updated | If paylink details are updated successfully then this status will be returned. |
| 200 | Success | Paylink notification sent | If paylink notification is sent successfully then this status will be returned. |
| 201 | Success | Paylink created | If paylink url is created, then this status will be returned. |
| 204 | Success | Paylink deleted | If paylink is successfully deleted, then this status will be returned. |
| 400 | Validation error | Email or mobile number is required | Email or mobile number is required while creating any paylink resource. |
| 400 | Validation error | Status can be changed for unpaid paylinks only | Paylink can be updated only if its status is unpaid. |
| 400 | Validation error | Only email, mobile number or reminder details can be updated for any paylink | The following details can be updated for any unpaid paylink: email, mobile number, and reminder. |
| 400 | Validation error | Status can only be changed to cancelled | Unpaid paylink can only be changed to “cancelled” status. |
| 400 | Validation error | Reminder interval and frequency are required | If reminder details need to be updated for any unpaid paylink, then both the reminder interval and frequency are required. |
| 400 | Validation error | Paid paylink cannot be deleted | Any paid paylink cannot be deleted. |
| 400 | Validation error | Send sms or Send email must be true | Any of the following attribute must be true for Paylink Notification request: send_sms, send_email. |
| 400 | Validation error | Notification can only be sent if the status is Payment attempted or Unpaid | Paylink Notification request will be sent only if the status is Unpaid or Payment attempted. |
| 401 | Authorisation error | Unauthorised access | If invalid merchant details are passed, then this status will be returned. |
| 404 | Data not found | Invalid request | If invalid paylink id is passed, then this status will be returned. |

### [**​**](https://docs.blinkpayment.co.uk/docs/api-reference/errors-and-responses#paylinks)