---
title: "Resend signature passcode"
method: POST
path: "/v1/signatures/{signatureId}/resendOtp"
tags: ["Qualified Electronic Signature"]
---

# Resend signature passcode

`POST /v1/signatures/{signatureId}/resendOtp`

## Request

- Base URL: `https://api.ext-sandbox.fourthline.com`
- URL: `https://api.ext-sandbox.fourthline.com/v1/signatures/{signatureId}/resendOtp`
- Auth: OAuth 2
  - Client credentials
  - Token URL: `https://example.com/token`

If something went wrong entering the one-time passcode in the signature flow, use this endpoint to resend the passcode to the client. <br /><br /><img src="https://files.readme.io/310d4d3-Inline_Caution.svg" align="left" alt="Important" /> **Important:** <br />• Before using this endpoint, see the <a href="https://docs.fourthline.com/docs/qes-integration">integration guide</a>. <br />• <code>signatureId</code> and <code>workflowId</code> are string identifiers that can be used interchangeably.

## Path parameters

- `signatureId` string, required

## Query parameters

- `lang` 'cs' | 'de' | 'en' | 'es' | 'fi' | 'fr' | 'it' | 'nl' | 'pl' | 'sk'

## Headers

- `Authorization` string, required: The `access_token` returned in your most recent [Create access token](ref:create-access-token) response.

## Response `202`

Passcode resend accepted

- object: The request was accepted. The response body is empty.

## Other responses

- `400`: Invalid request parameters
- `404`: Signature not found
- `422`: The request could not be processed
- `429`: Retry attempts exceeded

---

[API](https://skmtc.dev/fourthline/apis/fourthline-apis.md) - [All operations](https://skmtc.dev/fourthline/apis/fourthline-apis/llms.txt) - [OpenAPI document](https://skmtc.dev/fourthline/apis/fourthline-apis/revisions/87907b6e3164?raw)