Create a reply draft for a selected Outlook message
curl --request POST \
--url https://api.openworklabs.com/v1/capabilities/microsoft-365/mail-message/{messageId}/reply-draft \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data '
{
"comment": "<string>"
}
'import requests
url = "https://api.openworklabs.com/v1/capabilities/microsoft-365/mail-message/{messageId}/reply-draft"
payload = { "comment": "<string>" }
headers = {
"Authorization": "Bearer <token>",
"Content-Type": "application/json"
}
response = requests.post(url, json=payload, headers=headers)
print(response.text)const options = {
method: 'POST',
headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
body: JSON.stringify({comment: '<string>'})
};
fetch('https://api.openworklabs.com/v1/capabilities/microsoft-365/mail-message/{messageId}/reply-draft', 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.openworklabs.com/v1/capabilities/microsoft-365/mail-message/{messageId}/reply-draft",
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([
'comment' => '<string>'
]),
CURLOPT_HTTPHEADER => [
"Authorization: Bearer <token>",
"Content-Type: application/json"
],
]);
$response = curl_exec($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://api.openworklabs.com/v1/capabilities/microsoft-365/mail-message/{messageId}/reply-draft"
payload := strings.NewReader("{\n \"comment\": \"<string>\"\n}")
req, _ := http.NewRequest("POST", url, payload)
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))
}HttpResponse<String> response = Unirest.post("https://api.openworklabs.com/v1/capabilities/microsoft-365/mail-message/{messageId}/reply-draft")
.header("Authorization", "Bearer <token>")
.header("Content-Type", "application/json")
.body("{\n \"comment\": \"<string>\"\n}")
.asString();require 'uri'
require 'net/http'
url = URI("https://api.openworklabs.com/v1/capabilities/microsoft-365/mail-message/{messageId}/reply-draft")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n \"comment\": \"<string>\"\n}"
response = http.request(request)
puts response.read_body{
"ok": true,
"draft": {
"id": "<string>",
"conversationId": "<string>",
"subject": "<string>",
"receivedDateTime": "<string>",
"preview": "<string>",
"from": {
"name": "<string>",
"address": "<string>"
},
"to": [
{
"name": "<string>",
"address": "<string>"
}
],
"webLink": "<string>",
"hasAttachments": true,
"isDraft": true,
"isRead": true,
"categories": [
"<string>"
],
"parentFolderId": "<string>",
"cc": [
{
"name": "<string>",
"address": "<string>"
}
],
"body": "<string>",
"bodyContentType": "<string>",
"bodyTruncated": true
}
}{
"error": "unauthorized"
}{
"error": "needs_connection",
"message": "<string>"
}{
"error": "invalid_request",
"message": "<string>"
}{
"error": "microsoft_graph_error",
"message": "<string>",
"outcome": "unknown",
"retryable": false
}Capability Sources
Create a reply draft for a selected Outlook message
Uses Graph createReply with Mail.ReadWrite and mailDraft. Preserves the selected message’s reply context. Saves a draft for user review and never sends it. Uses only the calling member’s delegated Microsoft 365 connection. Never automatically retry a mutation after a timeout, cancellation, or ambiguous response; inspect current state first.
POST
/
v1
/
capabilities
/
microsoft-365
/
mail-message
/
{messageId}
/
reply-draft
Create a reply draft for a selected Outlook message
curl --request POST \
--url https://api.openworklabs.com/v1/capabilities/microsoft-365/mail-message/{messageId}/reply-draft \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data '
{
"comment": "<string>"
}
'import requests
url = "https://api.openworklabs.com/v1/capabilities/microsoft-365/mail-message/{messageId}/reply-draft"
payload = { "comment": "<string>" }
headers = {
"Authorization": "Bearer <token>",
"Content-Type": "application/json"
}
response = requests.post(url, json=payload, headers=headers)
print(response.text)const options = {
method: 'POST',
headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
body: JSON.stringify({comment: '<string>'})
};
fetch('https://api.openworklabs.com/v1/capabilities/microsoft-365/mail-message/{messageId}/reply-draft', 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.openworklabs.com/v1/capabilities/microsoft-365/mail-message/{messageId}/reply-draft",
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([
'comment' => '<string>'
]),
CURLOPT_HTTPHEADER => [
"Authorization: Bearer <token>",
"Content-Type: application/json"
],
]);
$response = curl_exec($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://api.openworklabs.com/v1/capabilities/microsoft-365/mail-message/{messageId}/reply-draft"
payload := strings.NewReader("{\n \"comment\": \"<string>\"\n}")
req, _ := http.NewRequest("POST", url, payload)
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))
}HttpResponse<String> response = Unirest.post("https://api.openworklabs.com/v1/capabilities/microsoft-365/mail-message/{messageId}/reply-draft")
.header("Authorization", "Bearer <token>")
.header("Content-Type", "application/json")
.body("{\n \"comment\": \"<string>\"\n}")
.asString();require 'uri'
require 'net/http'
url = URI("https://api.openworklabs.com/v1/capabilities/microsoft-365/mail-message/{messageId}/reply-draft")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n \"comment\": \"<string>\"\n}"
response = http.request(request)
puts response.read_body{
"ok": true,
"draft": {
"id": "<string>",
"conversationId": "<string>",
"subject": "<string>",
"receivedDateTime": "<string>",
"preview": "<string>",
"from": {
"name": "<string>",
"address": "<string>"
},
"to": [
{
"name": "<string>",
"address": "<string>"
}
],
"webLink": "<string>",
"hasAttachments": true,
"isDraft": true,
"isRead": true,
"categories": [
"<string>"
],
"parentFolderId": "<string>",
"cc": [
{
"name": "<string>",
"address": "<string>"
}
],
"body": "<string>",
"bodyContentType": "<string>",
"bodyTruncated": true
}
}{
"error": "unauthorized"
}{
"error": "needs_connection",
"message": "<string>"
}{
"error": "invalid_request",
"message": "<string>"
}{
"error": "microsoft_graph_error",
"message": "<string>",
"outcome": "unknown",
"retryable": false
}Authorizations
bearerAuthdenApiKey
Session token passed as Authorization: Bearer <session-token> for user-authenticated Den routes.
Path Parameters
Microsoft Graph message id.
Required string length:
1 - 512Body
application/json
Reply text to save in a draft for user review; this does not send mail.
Required string length:
1 - 20000Was this page helpful?