curl --request POST \
  --url https://client-api.salesfinity.co/v2/sequencer/tasks/{id}/complete \
  --header 'Content-Type: application/json' \
  --header 'x-api-key: <api-key>' \
  --data '
{
  "user_id": "64b7f0c2e4b0a1b2c3d4e5f1",
  "subject": "Q3 pipeline report",
  "body": "<p>Hi Theresa,</p><p>Thanks for downloading the Q3 pipeline report. Worth 15 minutes next week?</p>"
}
'

import requests

url = "https://client-api.salesfinity.co/v2/sequencer/tasks/{id}/complete"

payload = {
    "user_id": "64b7f0c2e4b0a1b2c3d4e5f1",
    "subject": "Q3 pipeline report",
    "body": "<p>Hi Theresa,</p><p>Thanks for downloading the Q3 pipeline report. Worth 15 minutes next week?</p>"
}
headers = {
    "x-api-key": "<api-key>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {'x-api-key': '<api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    user_id: '64b7f0c2e4b0a1b2c3d4e5f1',
    subject: 'Q3 pipeline report',
    body: JSON.stringify('<p>Hi Theresa,</p><p>Thanks for downloading the Q3 pipeline report. Worth 15 minutes next week?</p>')
  })
};

fetch('https://client-api.salesfinity.co/v2/sequencer/tasks/{id}/complete', 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://client-api.salesfinity.co/v2/sequencer/tasks/{id}/complete",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'user_id' => '64b7f0c2e4b0a1b2c3d4e5f1',
    'subject' => 'Q3 pipeline report',
    'body' => '<p>Hi Theresa,</p><p>Thanks for downloading the Q3 pipeline report. Worth 15 minutes next week?</p>'
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json",
    "x-api-key: <api-key>"
  ],
]);

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

curl_close($curl);

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

package main

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

func main() {

	url := "https://client-api.salesfinity.co/v2/sequencer/tasks/{id}/complete"

	payload := strings.NewReader("{\n  \"user_id\": \"64b7f0c2e4b0a1b2c3d4e5f1\",\n  \"subject\": \"Q3 pipeline report\",\n  \"body\": \"<p>Hi Theresa,</p><p>Thanks for downloading the Q3 pipeline report. Worth 15 minutes next week?</p>\"\n}")

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

	req.Header.Add("x-api-key", "<api-key>")
	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))

}

HttpResponse<String> response = Unirest.post("https://client-api.salesfinity.co/v2/sequencer/tasks/{id}/complete")
  .header("x-api-key", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"user_id\": \"64b7f0c2e4b0a1b2c3d4e5f1\",\n  \"subject\": \"Q3 pipeline report\",\n  \"body\": \"<p>Hi Theresa,</p><p>Thanks for downloading the Q3 pipeline report. Worth 15 minutes next week?</p>\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://client-api.salesfinity.co/v2/sequencer/tasks/{id}/complete")

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

request = Net::HTTP::Post.new(url)
request["x-api-key"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"user_id\": \"64b7f0c2e4b0a1b2c3d4e5f1\",\n  \"subject\": \"Q3 pipeline report\",\n  \"body\": \"<p>Hi Theresa,</p><p>Thanks for downloading the Q3 pipeline report. Worth 15 minutes next week?</p>\"\n}"

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

{
  "_id": "66fd2a91c3e4b5a6d7e8f901",
  "team": "64b7f0c2e4b0a1b2c3d4e5f0",
  "user": "64b7f0c2e4b0a1b2c3d4e5f1",
  "sequence": {
    "_id": "66f0aa11b2c3d4e5f6a7b8c1",
    "name": "Q4 outbound: VP Sales"
  },
  "sequence_state": "66fb3c22d4e5f6a7b8c9d0e1",
  "sequence_step": "66f0aa11b2c3d4e5f6a7b8d3",
  "contact": {
    "_id": "66f9b1e0a2c3d4e5f6a7b8c9",
    "first_name": "Theresa",
    "last_name": "Webb",
    "email": "[email protected]",
    "account": "Acme, LLC",
    "account_key": "acme",
    "title": "VP of Sales",
    "timezone": "America/Chicago",
    "phone_numbers": [
      {
        "type": "direct",
        "number": "+15125550142",
        "do_not_call": false
      }
    ],
    "last_touched_at": "2026-09-30T15:12:04.000Z"
  },
  "origin": "sequence",
  "action": "manual_email",
  "subject": "Q3 pipeline report",
  "note": "Reference the Q3 pipeline report she downloaded.",
  "due_at": "2026-10-03T14:00:00.000Z",
  "priority": "high",
  "autoskip_at": "2026-10-06T14:00:00.000Z",
  "state": "pending",
  "held_at": null,
  "standalone": false,
  "contact_list": null,
  "contact_list_item": null,
  "sending_claimed_at": "2026-10-03T15:21:40.000Z",
  "outcome_applied_at": null,
  "created_at": "2026-10-03T14:00:01.000Z",
  "updated_at": "2026-10-03T15:21:40.000Z",
  "body": "<p>Hi Theresa,</p><p>Thanks for downloading the Q3 pipeline report. Worth 15 minutes next week?</p>"
}

{
  "message": [
    "body must be shorter than or equal to 20000 characters"
  ],
  "error": "Bad Request",
  "statusCode": 400,
  "request_id": "0f6d3c52-9f3e-4c1a-a4b8-2b1f7e5d9c10"
}

{
  "message": "The acting user is not an active member of this team",
  "error": "Forbidden",
  "statusCode": 403,
  "request_id": "0f6d3c52-9f3e-4c1a-a4b8-2b1f7e5d9c10"
}

{
  "message": "Sequence task not found",
  "error": "Not Found",
  "statusCode": 404,
  "request_id": "0f6d3c52-9f3e-4c1a-a4b8-2b1f7e5d9c10"
}

{
  "message": "This email is already being sent for this task",
  "error": "Conflict",
  "statusCode": 409,
  "request_id": "0f6d3c52-9f3e-4c1a-a4b8-2b1f7e5d9c10"
}

{
  "message": "Rate limit of 300 requests per minute exceeded. Retry in 12s.",
  "error": "Too Many Requests",
  "statusCode": 429,
  "request_id": "0f6d3c52-9f3e-4c1a-a4b8-2b1f7e5d9c10"
}

{
  "message": "Internal server error",
  "error": "Internal Server Error",
  "statusCode": 500,
  "request_id": "0f6d3c52-9f3e-4c1a-a4b8-2b1f7e5d9c10"
}

{
  "message": "Sequencer service unreachable",
  "error": "Bad Gateway",
  "statusCode": 502,
  "request_id": "0f6d3c52-9f3e-4c1a-a4b8-2b1f7e5d9c10"
}

{
  "message": "Sequencer service timed out",
  "error": "Gateway Timeout",
  "statusCode": 504,
  "request_id": "0f6d3c52-9f3e-4c1a-a4b8-2b1f7e5d9c10"
}