curl --request POST \
  --url https://app.vumasign.com/api/v1/envelopes/{envelopeId}/void \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --header 'Idempotency-Key: <idempotency-key>' \
  --data '
{
  "reason": "Superseded by a corrected offer"
}
'

import requests

url = "https://app.vumasign.com/api/v1/envelopes/{envelopeId}/void"

payload = { "reason": "Superseded by a corrected offer" }
headers = {
    "Idempotency-Key": "<idempotency-key>",
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'POST',
  headers: {
    'Idempotency-Key': '<idempotency-key>',
    Authorization: 'Bearer <token>',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({reason: 'Superseded by a corrected offer'})
};

fetch('https://app.vumasign.com/api/v1/envelopes/{envelopeId}/void', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://app.vumasign.com/api/v1/envelopes/{envelopeId}/void"

	payload := strings.NewReader("{\n  \"reason\": \"Superseded by a corrected offer\"\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("Idempotency-Key", "<idempotency-key>")
	req.Header.Add("Authorization", "Bearer <token>")
	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

{
  "id": "01960000-0000-4000-8000-0000000000e5",
  "status": "voided",
  "template_id": "01960000-0000-4000-8000-0000000007e1",
  "title": "Employment contract",
  "created_at": "2026-09-02T09:00:00.000Z",
  "sent_at": "2026-09-02T09:05:00.000Z",
  "expires_at": null,
  "recipients": [
    {
      "id": "01960000-0000-4000-8000-00000000005e",
      "role": "Employee",
      "name": "Thandi Mokoena",
      "email": "thandi@example.test",
      "routing_type": "sign",
      "status": "sent",
      "invitation_delivered": null,
      "embedded": false,
      "external_ref": null
    }
  ]
}

{
  "error": {
    "code": "unauthenticated",
    "message": "<string>"
  }
}

{
  "error": {
    "code": "unauthenticated",
    "message": "<string>"
  }
}

{
  "error": {
    "code": "unauthenticated",
    "message": "<string>"
  }
}

{
  "error": {
    "code": "unauthenticated",
    "message": "<string>"
  }
}

{
  "error": {
    "code": "unauthenticated",
    "message": "<string>"
  }
}

{
  "error": {
    "code": "unauthenticated",
    "message": "<string>"
  }
}

{
  "error": {
    "code": "unauthenticated",
    "message": "<string>"
  }
}

{
  "error": {
    "code": "unauthenticated",
    "message": "<string>"
  }
}