Translate task to Completed status tasks.task.complete
If you are developing integrations for Bitrix24 using AI tools (Codex, Claude Code, Cursor), connect to the MCP server so that the assistant can utilize the official REST documentation.
Scope:
taskWho can execute the method:
- any user with editing access to the task
- creator, assignee, and participants of the task
The method tasks.task.complete changes the task status to Completed.
Method Parameters
Required parameters are marked with *
|
Name |
Description |
|
taskId* |
Task identifier. The task identifier can be obtained when creating a new task or by using the get task list method |
Code Examples
How to Use Examples in Documentation
curl -X POST \
-H "Content-Type: application/json" \
-H "Accept: application/json" \
-d '{"taskId":1}' \
https://**put_your_bitrix24_address**/rest/**put_your_user_id_here**/**put_your_webhook_here**/tasks.task.complete
curl -X POST \
-H "Content-Type: application/json" \
-H "Accept: application/json" \
-d '{"taskId":1,"auth":"**put_access_token_here**"}' \
https://**put_your_bitrix24_address**/rest/tasks.task.complete
try
{
const response = await $b24.callMethod(
'tasks.task.complete',
{
taskId: 1,
}
);
const result = response.getData().result;
console.log('Completed task with ID:', result);
processResult(result);
}
catch( error )
{
console.error('Error:', error);
}
try {
$response = $b24Service
->core
->call(
'tasks.task.complete',
[
'taskId' => 1
]
);
$result = $response
->getResponseData()
->getResult();
echo 'Success: ' . print_r($result, true);
processData($result);
} catch (Throwable $e) {
error_log($e->getMessage());
echo 'Error completing task: ' . $e->getMessage();
}
BX24.callMethod(
'tasks.task.complete',
{
'taskId': 1
},
function(result){
console.info(result.data());
console.log(result);
}
);
require_once('crest.php');
$result = CRest::call(
'tasks.task.complete',
[
'taskId' => 1
]
);
echo '<PRE>';
print_r($result);
echo '</PRE>';
Response Handling
HTTP status: 200
{
"result": {
"task": {
"id": "8017",
"parentId": "7817",
"title": "Task Example",
"description": "Task description with [B]formatting[/B]",
"mark": "P",
"priority": "2",
"multitask": "N",
"notViewed": "N",
"replicate": "Y",
"stageId": "351",
"sprintId": null,
"backlogId": "5",
"createdBy": "503",
"createdDate": "2025-06-04T16:15:55+02:00",
"responsibleId": "503",
"changedBy": "503",
"changedDate": "2025-09-09T12:11:30+02:00",
"statusChangedBy": "503",
"closedBy": "503",
"closedDate": "2025-09-09T12:11:30+02:00",
"activityDate": "2025-09-09T12:11:30+02:00",
"dateStart": "2025-09-08T16:45:28+02:00",
"deadline": "2025-09-19T17:00:00+02:00",
"startDatePlan": null,
"endDatePlan": null,
"guid": "{21e7b78d-498e-4c84-a896-2dbeb26861b8}",
"xmlId": null,
"commentsCount": "39",
"serviceCommentsCount": "23",
"allowChangeDeadline": "Y",
"allowTimeTracking": "Y",
"taskControl": "Y",
"addInReport": "N",
"forkedByTemplateId": null,
"timeEstimate": "101580",
"timeSpentInLogs": "69963",
"matchWorkTime": "N",
"forumTopicId": "1273",
"forumId": "11",
"siteId": "s1",
"subordinate": "Y",
"exchangeModified": null,
"exchangeId": null,
"outlookVersion": "41",
"viewedDate": "2025-09-09T12:11:30+02:00",
"sorting": null,
"durationFact": "1166",
"isMuted": "Y",
"isPinned": "N",
"isPinnedInGroup": "N",
"flowId": null,
"descriptionInBbcode": "Y",
"status": "5",
"statusChangedDate": "2025-09-09T12:11:30+02:00",
"durationPlan": "0",
"durationType": "days",
"favorite": "Y",
"groupId": "125",
"auditors": ["61", "103", "547"],
"accomplices": ["3", "11"],
"checklist": {
"433": {
"id": "433",
"taskId": "8017",
"createdBy": "503",
"parentId": "431",
"title": "First",
"sortIndex": "0",
"isComplete": "N",
"isImportant": "N",
"toggledBy": null,
"toggledDate": null,
"ufChecklistFiles": false,
"members": [],
"attachments": [],
"entityId": "8017",
"action": {
"modify": true,
"remove": true,
"toggle": true,
"add": true,
"addAccomplice": true
}
},
"431": {
"id": "431",
"taskId": "8017",
"createdBy": "503",
"parentId": 0,
"title": "Checklist 1",
"sortIndex": "0",
"isComplete": "N",
"isImportant": "N",
"toggledBy": null,
"toggledDate": null,
"ufChecklistFiles": false,
"members": [],
"attachments": [],
"entityId": "8017",
"action": {
"modify": true,
"remove": true,
"toggle": true,
"add": true,
"addAccomplice": true
}
},
"435": {
"id": "435",
"taskId": "8017",
"createdBy": "503",
"parentId": "431",
"title": "Second",
"sortIndex": "1",
"isComplete": "N",
"isImportant": "N",
"toggledBy": null,
"toggledDate": null,
"ufChecklistFiles": false,
"members": [],
"attachments": [],
"entityId": "8017",
"action": {
"modify": true,
"remove": true,
"toggle": true,
"add": true,
"addAccomplice": true
}
}
},
"group": {
"id": "125",
"name": "Workgroup",
"opened": false,
"membersCount": 1,
"image": "\/bitrix\/images\/socialnetwork\/workgroup\/bag.png",
"additionalData": []
},
"creator": {
"id": "503",
"name": "Sophia Taylor",
"link": "\/company\/personal\/user\/503\/",
"icon": "https:\/\/mysite.com\/b17053\/resize_cache\/45749\/c0120a8d7c10d63c83e32398d1ec4d9e\/main\/c89\/c89c6b7301880958ea704b5a8470635c\/4R5A1256.png",
"workPosition": "Administrator"
},
"responsible": {
"id": "503",
"name": "Sophia Taylor",
"link": "\/company\/personal\/user\/503\/",
"icon": "https:\/\/mysite.com\/b17053\/resize_cache\/45749\/c0120a8d7c10d63c83e32398d1ec4d9e\/main\/c89\/c89c6b7301880958ea704b5a8470635c\/4R5A1256.png",
"workPosition": "Administrator"
},
"accomplicesData": {
"3": {
"id": "3",
"name": "Matthew Anderson",
"link": "\/company\/personal\/user\/3\/",
"icon": "https:\/\/mysite.com\/b17053\/resize_cache\/249\/c0120a8d7c10d63c83e32398d1ec4d9e\/main\/cd526b0644e7ff4d794ea41cb36bc423\/odmin.png",
"workPosition": "System Administrator"
},
"11": {
"id": "11",
"name": "Daniel Clark",
"link": "\/company\/personal\/user\/11\/",
"icon": "https:\/\/mysite.com\/b17053\/resize_cache\/231\/c0120a8d7c10d63c83e32398d1ec4d9e\/main\/026bf59e161a0bd50f401d3796800651\/66b.jpg",
"workPosition": "Specialist"
}
},
"auditorsData": {
"61": {
"id": "61",
"name": "John Peterson",
"link": "\/company\/personal\/user\/61\/",
"icon": "https:\/\/mysite.com\/b17053\/resize_cache\/8674\/c0120a8d7c10d63c83e32398d1ec4d9e\/main\/7b5\/7b52e4c2304ec0520dab3d4261e9ca1f\/sp.jpg",
"workPosition": "Marketer"
},
"103": {
"id": "103",
"name": "Emily Smith",
"link": "\/company\/personal\/user\/103\/",
"icon": "https:\/\/mysite.com\/b17053\/resize_cache\/8644\/c0120a8d7c10d63c83e32398d1ec4d9e\/main\/45f\/45fff10d17d398a5583184c8350cd197\/buh.jpg",
"workPosition": "Accountant"
},
"547": {
"id": "547",
"name": "Olivia",
"link": "\/company\/personal\/user\/547\/",
"icon": "\/bitrix\/images\/tasks\/default_avatar.png",
"workPosition": "Tester"
}
},
"newCommentsCount": 0,
"action": {
"accept": false,
"decline": false,
"complete": false,
"approve": false,
"disapprove": false,
"start": false,
"pause": false,
"delegate": false,
"remove": true,
"edit": true,
"defer": false,
"renew": true,
"create": true,
"changeDeadline": true,
"checklistAddItems": true,
"addFavorite": false,
"deleteFavorite": true,
"rate": true,
"take": false,
"edit.originator": false,
"checklist.reorder": true,
"elapsedtime.add": true,
"dayplan.timer.toggle": false,
"edit.plan": true,
"checklist.add": true,
"favorite.add": false,
"favorite.delete": true
},
"checkListTree": {
"nodeId": 0,
"fields": {
"id": null,
"copiedId": null,
"entityId": null,
"userId": 503,
"createdBy": null,
"parentId": null,
"title": "",
"sortIndex": null,
"displaySortIndex": "",
"isComplete": false,
"isImportant": false,
"completedCount": 0,
"members": [],
"attachments": [],
"nodeId": null
},
"action": [],
"descendants": [
{
"nodeId": 1,
"fields": {
"id": 431,
"copiedId": null,
"entityId": 8017,
"userId": 503,
"createdBy": 503,
"parentId": 0,
"title": "Checklist 1",
"sortIndex": 0,
"displaySortIndex": "",
"isComplete": false,
"isImportant": false,
"completedCount": 0,
"members": [],
"attachments": [],
"nodeId": null
},
"action": {
"modify": true,
"remove": true,
"toggle": true,
"add": true,
"addAccomplice": true
},
"descendants": [
{
"nodeId": 2,
"fields": {
"id": 433,
"copiedId": null,
"entityId": 8017,
"userId": 503,
"createdBy": 503,
"parentId": 431,
"title": "First",
"sortIndex": 0,
"displaySortIndex": "1",
"isComplete": false,
"isImportant": false,
"completedCount": 0,
"members": [],
"attachments": [],
"nodeId": null
},
"action": {
"modify": true,
"remove": true,
"toggle": true,
"add": true,
"addAccomplice": true
},
"descendants": []
},
{
"nodeId": 3,
"fields": {
"id": 435,
"copiedId": null,
"entityId": 8017,
"userId": 503,
"createdBy": 503,
"parentId": 431,
"title": "Second",
"sortIndex": 1,
"displaySortIndex": "2",
"isComplete": false,
"isImportant": false,
"completedCount": 0,
"members": [],
"attachments": [],
"nodeId": null
},
"action": {
"modify": true,
"remove": true,
"toggle": true,
"add": true,
"addAccomplice": true
},
"descendants": []
}
]
}
]
},
"checkListCanAdd": true
}
},
"time": {
"start": 1757409090.066585,
"finish": 1757409090.537629,
"duration": 0.47104382514953613,
"processing": 0.4461088180541992,
"date_start": "2025-09-09T12:11:30+02:00",
"date_finish": "2025-09-09T12:11:30+02:00",
"operating_reset_at": 1757409690,
"operating": 0.4460930824279785
}
}
Returned Data
|
Name |
Description |
|
result |
Object with response data |
|
task |
Object with task description after the operation is performed |
|
time |
Information about the request execution time |
Error Handling
HTTP status: 400
{
"error":"0",
"error_description":"Action on the task is not allowed"
}
|
Name |
Description |
|
error |
String error code. It may consist of digits, Latin letters, and underscores |
|
error_description |
Textual description of the error. The description is not intended to be shown to the end user in its raw form |
Possible Error Codes
|
Code |
Description |
Value |
|
|
wrong task id |
The value of |
|
|
Action on the task is not allowed |
This error is returned in cases:
|
Statuses and System Error Codes
HTTP Status: 20x, 40x, 50x
The errors described below may occur when calling any method.
|
Status |
Code |
Description |
|
|
|
An internal server error has occurred. Please contact the server administrator or Bitrix24 technical support |
|
|
|
An internal server error has occurred. Please contact the server administrator or Bitrix24 technical support |
|
|
|
The request intensity limit has been exceeded |
|
|
|
The current method is not permitted for calls using batch |
|
|
|
The maximum length of parameters passed to the batch method has been exceeded |
|
|
|
Invalid access token or webhook code |
|
|
|
The HTTPS protocol is required for method calls |
|
|
|
The REST API is blocked due to overload. This is a manual individual block; please contact Bitrix24 technical support to lift it |
|
|
|
The REST API is only available on commercial plans |
|
|
|
The user associated with the access token or webhook used to call the method lacks the necessary permissions |
|
|
|
The manifest is not available |
|
|
|
The request requires higher privileges than those provided by the webhook token |
|
|
|
The provided access token has expired |
|
|
|
The user does not have access to the application. This means that the application is installed, but the portal administrator has restricted access to this application to specific users only |
|
|
|
The public part of the site is closed. To open the public part of the site on an on-premise installation, disable the "Temporary closure of the public part of the site" option. Path to the setting: Desktop > Settings > Product Settings > Module Settings > Main Module > Temporary closure of the public part of the site |
Continue Learning
- Tasks: Overview of Methods
- Translate the task to In Progress status tasks.task.start
- Translate task to Waiting for execution status tasks.task.pause
- Translate the task to Deferred status tasks.task.defer
- Renew a task after its completion tasks.task.renew