Resend to Non-Openers

POST

api

campaigns

{campaignId}

resend-to-non-openers

Resend to Non-Openers

curl --request POST \
  --url https://api.sequenzy.com/api/v1/campaigns/{campaignId}/resend-to-non-openers \
  --header 'Authorization: Bearer <token>'

import requests

url = "https://api.sequenzy.com/api/v1/campaigns/{campaignId}/resend-to-non-openers"

headers = {"Authorization": "Bearer <token>"}

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

print(response.text)

const options = {method: 'POST', headers: {Authorization: 'Bearer <token>'}};

fetch('https://api.sequenzy.com/api/v1/campaigns/{campaignId}/resend-to-non-openers', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.sequenzy.com/api/v1/campaigns/{campaignId}/resend-to-non-openers",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

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

func main() {

	url := "https://api.sequenzy.com/api/v1/campaigns/{campaignId}/resend-to-non-openers"

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

	req.Header.Add("Authorization", "Bearer <token>")

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

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

	fmt.Println(string(body))

}

require 'uri'
require 'net/http'

url = URI("https://api.sequenzy.com/api/v1/campaigns/{campaignId}/resend-to-non-openers")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'

response = http.request(request)
puts response.read_body

{
  "success": true,
  "campaign": {
    "id": "camp_new123",
    "name": "April Launch (Non-openers)",
    "subject": "A quick update",
    "status": "draft",
    "labels": [],
    "emailId": "email_new123",
    "scheduledAt": null,
    "sentAt": null,
    "createdAt": "2026-06-11T10:00:00.000Z",
    "url": "https://sequenzy.com/dashboard/company/comp_abc123/campaign/camp_new123",
    "previewUrl": "https://sequenzy.com/dashboard/company/comp_abc123/campaign/camp_new123?step=review"
  },
  "estimatedNonOpenerCount": 842
}

{
  "error": "Resending to non-openers is only available 6 hours after a campaign finishes sending."
}

{
  "error": "This campaign was imported after it was sent elsewhere, so Sequenzy has no opens to resend against."
}

{
  "error": "Invalid API key"
}

{
  "error": "Campaign not found"
}

{
  "error": "Failed to create non-opener resend"
}

Every audience format keeps opener exclusions that manual additions cannot override. Resending a resend also preserves exclusions from earlier campaigns. Your audience is evaluated live, so new members can qualify even if they never received the original. If an older resend draft lacks excludedCampaignOpenerIds, recreate it from the original campaign and review the new draft before scheduling. Create a draft that resends a sent campaign to everyone in the same audience who didn’t open it. The draft copies the campaign email and reuses the original audience with a “didn’t open this campaign” rule added, so only people who haven’t opened it yet are targeted. This is only available 6 hours after the campaign finishes sending, which gives opens time to register. It is never available for imported campaigns - ones created with a sentAt that predates the campaign record - because Sequenzy has no opens for a send it did not deliver. The response includes an estimate of how many subscribers haven’t opened the original. The new draft is not sent automatically - review it, then schedule or send it.

Request

string

required

ID of the sent campaign to resend to non-openers.

curl -X POST "https://api.sequenzy.com/api/v1/campaigns/camp_abc123/resend-to-non-openers" \
  -H "Authorization: Bearer YOUR_API_KEY"

Responses

{
  "success": true,
  "campaign": {
    "id": "camp_new123",
    "name": "April Launch (Non-openers)",
    "subject": "A quick update",
    "status": "draft",
    "labels": [],
    "emailId": "email_new123",
    "scheduledAt": null,
    "sentAt": null,
    "createdAt": "2026-06-11T10:00:00.000Z",
    "url": "https://sequenzy.com/dashboard/company/comp_abc123/campaign/camp_new123",
    "previewUrl": "https://sequenzy.com/dashboard/company/comp_abc123/campaign/camp_new123?step=review"
  },
  "estimatedNonOpenerCount": 842
}

{
  "error": "Resending to non-openers is only available 6 hours after a campaign finishes sending."
}

{
  "error": "This campaign was imported after it was sent elsewhere, so Sequenzy has no opens to resend against."
}

{
  "error": "Invalid API key"
}

{
  "error": "Campaign not found"
}

{
  "error": "Failed to create non-opener resend"
}

Resend to Non-Openers

curl --request POST \
  --url https://api.sequenzy.com/api/v1/campaigns/{campaignId}/resend-to-non-openers \
  --header 'Authorization: Bearer <token>'

import requests

url = "https://api.sequenzy.com/api/v1/campaigns/{campaignId}/resend-to-non-openers"

headers = {"Authorization": "Bearer <token>"}

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

print(response.text)

const options = {method: 'POST', headers: {Authorization: 'Bearer <token>'}};

fetch('https://api.sequenzy.com/api/v1/campaigns/{campaignId}/resend-to-non-openers', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.sequenzy.com/api/v1/campaigns/{campaignId}/resend-to-non-openers",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

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

func main() {

	url := "https://api.sequenzy.com/api/v1/campaigns/{campaignId}/resend-to-non-openers"

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

	req.Header.Add("Authorization", "Bearer <token>")

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

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

	fmt.Println(string(body))

}

require 'uri'
require 'net/http'

url = URI("https://api.sequenzy.com/api/v1/campaigns/{campaignId}/resend-to-non-openers")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'

response = http.request(request)
puts response.read_body

{
  "success": true,
  "campaign": {
    "id": "camp_new123",
    "name": "April Launch (Non-openers)",
    "subject": "A quick update",
    "status": "draft",
    "labels": [],
    "emailId": "email_new123",
    "scheduledAt": null,
    "sentAt": null,
    "createdAt": "2026-06-11T10:00:00.000Z",
    "url": "https://sequenzy.com/dashboard/company/comp_abc123/campaign/camp_new123",
    "previewUrl": "https://sequenzy.com/dashboard/company/comp_abc123/campaign/camp_new123?step=review"
  },
  "estimatedNonOpenerCount": 842
}

{
  "error": "Resending to non-openers is only available 6 hours after a campaign finishes sending."
}

{
  "error": "This campaign was imported after it was sent elsewhere, so Sequenzy has no opens to resend against."
}

{
  "error": "Invalid API key"
}

{
  "error": "Campaign not found"
}

{
  "error": "Failed to create non-opener resend"
}

​Request

​Responses

Request

Responses