> This page is for API, version 2026-01-01 (Stable) (default). > For other versions, use one of these documentation indexes: > - 2026-01-01 (Stable) (default): https://developer.deel.com/api/stable/llms.txt > For clean Markdown of any page, append .md to the page URL. > For a complete documentation index, see https://developer.deel.com/llms.txt. > For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://developer.deel.com/_mcp/server. # Retrieve the ATS activity timeline GET https://api.letsdeel.com/rest/ats/operation-history-logs Returns the history of changes made to a candidate, application or job — who changed what and when, newest first. Use it to investigate how a record reached its current state, for example who approved an offer. **Token scopes**: `ats:read`, `worker:read` **Beta**: this version requires the `X-Beta: true` request header and its contract may change before it is promoted to stable. It is scheduled to become stable on 2027-01-28. Reference: https://developer.deel.com/api/reference/endpoints/ats/retrieve-a-list-of-ats-operation-history-logs-v-2026-10-28 ## Authentication - `Authorization` header (bearer token, required) — ## Authentication The Deel API uses bearer tokens to authenticate requests. All API calls must be made over HTTPS — calls over plain HTTP or without authentication will fail. ```curl curl -X GET 'https://api.letsdeel.com/rest/v2/contracts' \ -H 'Authorization: Bearer YOUR-TOKEN-HERE' ``` [Learn more about authentication](/api/authentication) - `Authorization` header (bearer token, required) — Standard OAuth2 security scheme based on https://swagger.io/docs/specification/authentication/ ## Servers - `https://api.letsdeel.com/rest` (Production, default) - `https://api-staging.letsdeel.com/rest` (Demo) ## Request ### Query parameters - `cursor` (string, optional) — Pagination cursor returned by a previous response. - `limit` (integer, optional, default: 30) — Maximum number of entries to return per page. - `candidate_ids` (list of string, optional) — Only entries about these candidates, across all of their applications. Combined with application_ids, returns the candidate's own entries plus those of the listed applications. - `application_ids` (list of string, optional) — Only entries about these applications. - `job_ids` (list of string, optional) — Only entries about these jobs and their applications. - `categories` (list of enum, optional) — Only entries about these kinds of record. - Allowed values: `JOB`, `OFFER`, `JOB_POSTING`, `CANDIDATE`, `APPLICATION`, `JOB_ACTIVITY`, `SCHEDULED_INTERVIEW`, `APPLICATION_ACTIVITY`, `OPENING`, `COMPENSATION`, `CANDIDATE_EMAIL_BLOCKLIST_ENTRY`, `ORGANIZATION_SETTINGS` - `created_by_hris_organization_user_ids` (list of string, optional) — Only entries for changes made by these HRIS organization users. - `date_range_start` (string, optional) — Only entries created at or after this timestamp (ISO 8601). - `date_range_end` (string, optional) — Only entries created at or before this timestamp (ISO 8601). ### Headers - `X-Beta` (enum, required, default: true) — Opts in to the beta version of this endpoint. Must be `true`. - Allowed values: `true` ## Response ### 200 Page of activity entries - `data` (list of AtsOperationHistoryLogsGetResponsesContentApplicationJsonSchemaDataItems, required) — Page of activity entries, newest first. - `has_more` (boolean, required) — Whether more pages are available. - `next_cursor` (string, required, nullable) — Cursor to fetch the next page; null when there are no more pages. - `total_count` (integer, required) — Total number of entries matching the filters. ## Errors ### 400 Bad Request Error Operation failed. - `errors` (list of AtsOperationHistoryLogsGetResponsesContentApplicationJsonSchemaErrorsItems, required) — List of error objects ### 401 Unauthorized Error Operation failed. - `request` (ApiErrorRequest, optional) - `errors` (list of ApiError, optional) ### 403 Forbidden Error Forbidden. ATS is not enabled for this organization or insufficient permissions. - `errors` (list of AtsOperationHistoryLogsGetResponsesContentApplicationJsonSchemaErrorsItems, required) — List of error objects ### 404 Not Found Error Operation failed. - `request` (ApiErrorRequest, optional) - `errors` (list of ApiError, optional) ### 500 Internal Server Error Operation failed. - `errors` (list of AtsOperationHistoryLogsGetResponsesContentApplicationJsonSchemaErrorsItems, required) — List of error objects ## Types ### AtsOperationHistoryLogsGetResponsesContentApplicationJsonSchemaDataItems - `id` (string, required) — Unique identifier of the entry - `changes` (list of AtsOperationHistoryLogsGetResponsesContentApplicationJsonSchemaDataItemsChangesItems, required) — Fields that changed. Empty for events that carry no field changes. - `category` (enum, required) — Kind of record that changed - Allowed values: `JOB`, `OFFER`, `JOB_POSTING`, `CANDIDATE`, `APPLICATION`, `JOB_ACTIVITY`, `SCHEDULED_INTERVIEW`, `APPLICATION_ACTIVITY`, `OPENING`, `COMPENSATION`, `CANDIDATE_EMAIL_BLOCKLIST_ENTRY`, `ORGANIZATION_SETTINGS` - `created_at` (string, required) — When the change happened - `operation_type` (enum, required) — What happened to the record - Allowed values: `JOB_UPDATED`, `JOB_HIRING_MEMBER_ADDED`, `JOB_HIRING_MEMBER_REMOVED`, `JOB_HIRING_MEMBER_UPDATED`, `OFFER_CREATED`, `OFFER_ACCEPTED`, `OFFER_DECLINED`, `OFFER_SUBMITTED_FOR_APPROVAL`, `OFFER_APPROVED`, `OFFER_APPROVAL_REJECTED`, `OFFER_DELETED`, `OFFER_UPDATED`, `OFFER_SENT`, `OFFER_RESENT`, `OFFER_SENT_OUTSIDE_DEEL`, `OFFER_RECORDED`, `OFFER_ACCEPTANCE_UNDONE`, `OFFER_DECLINE_UNDONE`, `JOB_POSTING_CREATED`, `JOB_POSTING_UPDATED`, `JOB_POSTING_PUBLISHED`, `JOB_POSTING_UNPUBLISHED`, `JOB_POSTING_ARCHIVED`, `JOB_POSTING_PUBLICATION_UPDATED`, `JOB_POSTING_AUDIENCE_UPDATED`, `COMPENSATION_CREATED`, `COMPENSATION_UPDATED`, `COMPENSATION_DELETED`, `CANDIDATE_DELETED`, `CANDIDATE_ANONYMIZED`, `CANDIDATE_AUTOMATICALLY_TAGGED`, `CANDIDATE_CREATED`, `CANDIDATE_AUTO_MERGED`, `CANDIDATE_UPDATED`, `CANDIDATE_LOCATION_UPDATED`, `APPLICATION_TRANSITIONED`, `APPLICATION_AUTO_TRANSITIONED`, `JOB_ACTIVITY_CREATED`, `JOB_ACTIVITY_UPDATED`, `JOB_ACTIVITY_DELETED`, `INTERVIEW_SCHEDULED`, `INTERVIEWER_ADDED`, `INTERVIEWER_REMOVED`, `INTERVIEW_UPDATED`, `INTERVIEW_CANCELLED`, `INTERVIEW_SLOT_REQUEST_SENT`, `INTERVIEW_SLOTS_SUBMITTED`, `INTERVIEW_MANUALLY_LOGGED`, `APPLICATION_EVALUATION_PARTICIPANT_ADDED`, `APPLICATION_EVALUATION_PARTICIPANT_REMOVED`, `APPLICATION_EVALUATION_FEEDBACK_SUBMITTED`, `APPLICATION_ACTIVITY_FEEDBACK_DISMISSED`, `APPLICATION_ACTIVITY_FEEDBACK_DISMISSAL_REVERTED`, `APPLICATION_ACTIVITY_CREATED`, `APPLICATION_ACTIVITY_DELETED`, `EMAIL_SENT`, `EMAIL_SCHEDULED`, `AUTOMATED_EMAIL_SENT`, `JOB_INTERVIEW_PLAN_UPDATED`, `OFFER_EXPIRED`, `OFFER_PENDING_CREATION`, `OPENING_CREATED`, `OPENING_UPDATED`, `OPENING_DELETED`, `OPENING_SUBMITTED_FOR_APPROVAL`, `OPENING_APPROVED`, `OPENING_REJECTED`, `APPLICATION_SOURCE_UPDATED`, `APPLICATION_SOURCE_CHANNEL_UPDATED`, `JOB_PRIVATE_NOTE_CREATED`, `JOB_PRIVATE_NOTE_UPDATED`, `JOB_PRIVATE_NOTE_DELETED`, `CANDIDATE_EMAIL_BLOCKLISTED`, `CANDIDATE_EMAIL_UNBLOCKLISTED`, `ORGANIZATION_SETTINGS_UPDATED`, `SECURITY_STATE_CHANGED` - `loggable_entity_id` (string, required) — ID of the record that changed - `job_id` (string, optional, nullable) — Job the change relates to, if any - `candidate_id` (string, optional, nullable) — Candidate the change relates to, if any - `application_id` (string, optional, nullable) — Application the change relates to, if any - `created_by_hris_organization_user_id` (string, optional, nullable) — HRIS organization user who made the change. Null for changes made by the system or an automation. ### AtsOperationHistoryLogsGetResponsesContentApplicationJsonSchemaErrorsItems - `code` (string, required) — Machine-readable error code - `message` (string, required) — Human-readable error message - `field` (string, optional) — Request field related to the error, if applicable ### ApiErrorRequest - `method` (string, optional) — The HTTP method of the failed request - `url` (string, optional) — The relative URL of the failed request - `status` (double, optional) — The status code of the response - `api_req_id` (string, optional) — The request ID of the failed request - `docs` (string, optional) — A link to the official documentation for the requested endpoint resource - `source` (string, optional) — The source handler which produced the returned error - `code` (double, optional) — The code of the source handler which produced the returned error ### ApiError - `message` (string, optional) — A description of the returned error - `path` (string, optional) — The JSON path where input validation failed ### AtsOperationHistoryLogsGetResponsesContentApplicationJsonSchemaDataItemsChangesItems - `after` (string, required, nullable) — Value after the change. Non-string values are JSON-encoded. Null when the field was cleared. - `field` (string, required) — Name of the changed field - `before` (string, required, nullable) — Value before the change. Non-string values are JSON-encoded. Null when the field was not set. ## Examples **Response** ```json { "data": [ { "id": "f47ac10b-58cc-4372-a567-0e02b2c3d479", "changes": [ { "after": "b2c3d4e5-f6a7-8901-2345-67890abcdef1", "field": "interviewPlanStageId", "before": "a1b2c3d4-e5f6-7890-1234-567890abcdef" } ], "category": "APPLICATION", "created_at": "2026-02-03T10:15:00Z", "operation_type": "APPLICATION_TRANSITIONED", "loggable_entity_id": "f47ac10b-58cc-4372-a567-0e02b2c3d479", "job_id": "f47ac10b-58cc-4372-a567-0e02b2c3d479", "candidate_id": "f47ac10b-58cc-4372-a567-0e02b2c3d479", "application_id": "f47ac10b-58cc-4372-a567-0e02b2c3d479", "created_by_hris_organization_user_id": "f47ac10b-58cc-4372-a567-0e02b2c3d479" } ], "has_more": true, "next_cursor": "eyJpZCI6IjEyMzQifQ==", "total_count": 120 } ``` **SDK Code** ```python import requests url = "https://api.letsdeel.com/rest/ats/operation-history-logs" querystring = {"application_ids":"[\"f47ac10b-58cc-4372-a567-0e02b2c3d479\"]","candidate_ids":"[\"f47ac10b-58cc-4372-a567-0e02b2c3d479\"]","categories":"[\"APPLICATION\",\"OFFER\"]","created_by_hris_organization_user_ids":"[\"f47ac10b-58cc-4372-a567-0e02b2c3d479\"]","cursor":"eyJpZCI6IjEyMzQifQ==","date_range_end":"2026-03-31T23:59:59.000Z","date_range_start":"2026-01-01T00:00:00.000Z","job_ids":"[\"f47ac10b-58cc-4372-a567-0e02b2c3d479\"]","limit":"30"} headers = { "X-Beta": "true", "Authorization": "Bearer " } response = requests.get(url, headers=headers, params=querystring) print(response.json()) ``` ```javascript const url = 'https://api.letsdeel.com/rest/ats/operation-history-logs?application_ids=%5B%22f47ac10b-58cc-4372-a567-0e02b2c3d479%22%5D&candidate_ids=%5B%22f47ac10b-58cc-4372-a567-0e02b2c3d479%22%5D&categories=%5B%22APPLICATION%22%2C%22OFFER%22%5D&created_by_hris_organization_user_ids=%5B%22f47ac10b-58cc-4372-a567-0e02b2c3d479%22%5D&cursor=eyJpZCI6IjEyMzQifQ%3D%3D&date_range_end=2026-03-31T23%3A59%3A59.000Z&date_range_start=2026-01-01T00%3A00%3A00.000Z&job_ids=%5B%22f47ac10b-58cc-4372-a567-0e02b2c3d479%22%5D&limit=30'; const options = {method: 'GET', headers: {'X-Beta': 'true', Authorization: 'Bearer '}}; try { const response = await fetch(url, options); const data = await response.json(); console.log(data); } catch (error) { console.error(error); } ``` ```go package main import ( "fmt" "net/http" "io" ) func main() { url := "https://api.letsdeel.com/rest/ats/operation-history-logs?application_ids=%5B%22f47ac10b-58cc-4372-a567-0e02b2c3d479%22%5D&candidate_ids=%5B%22f47ac10b-58cc-4372-a567-0e02b2c3d479%22%5D&categories=%5B%22APPLICATION%22%2C%22OFFER%22%5D&created_by_hris_organization_user_ids=%5B%22f47ac10b-58cc-4372-a567-0e02b2c3d479%22%5D&cursor=eyJpZCI6IjEyMzQifQ%3D%3D&date_range_end=2026-03-31T23%3A59%3A59.000Z&date_range_start=2026-01-01T00%3A00%3A00.000Z&job_ids=%5B%22f47ac10b-58cc-4372-a567-0e02b2c3d479%22%5D&limit=30" req, _ := http.NewRequest("GET", url, nil) req.Header.Add("X-Beta", "true") req.Header.Add("Authorization", "Bearer ") res, _ := http.DefaultClient.Do(req) defer res.Body.Close() body, _ := io.ReadAll(res.Body) fmt.Println(res) fmt.Println(string(body)) } ``` ```ruby require 'uri' require 'net/http' url = URI("https://api.letsdeel.com/rest/ats/operation-history-logs?application_ids=%5B%22f47ac10b-58cc-4372-a567-0e02b2c3d479%22%5D&candidate_ids=%5B%22f47ac10b-58cc-4372-a567-0e02b2c3d479%22%5D&categories=%5B%22APPLICATION%22%2C%22OFFER%22%5D&created_by_hris_organization_user_ids=%5B%22f47ac10b-58cc-4372-a567-0e02b2c3d479%22%5D&cursor=eyJpZCI6IjEyMzQifQ%3D%3D&date_range_end=2026-03-31T23%3A59%3A59.000Z&date_range_start=2026-01-01T00%3A00%3A00.000Z&job_ids=%5B%22f47ac10b-58cc-4372-a567-0e02b2c3d479%22%5D&limit=30") http = Net::HTTP.new(url.host, url.port) http.use_ssl = true request = Net::HTTP::Get.new(url) request["X-Beta"] = 'true' request["Authorization"] = 'Bearer ' response = http.request(request) puts response.read_body ``` ```java import com.mashape.unirest.http.HttpResponse; import com.mashape.unirest.http.Unirest; HttpResponse response = Unirest.get("https://api.letsdeel.com/rest/ats/operation-history-logs?application_ids=%5B%22f47ac10b-58cc-4372-a567-0e02b2c3d479%22%5D&candidate_ids=%5B%22f47ac10b-58cc-4372-a567-0e02b2c3d479%22%5D&categories=%5B%22APPLICATION%22%2C%22OFFER%22%5D&created_by_hris_organization_user_ids=%5B%22f47ac10b-58cc-4372-a567-0e02b2c3d479%22%5D&cursor=eyJpZCI6IjEyMzQifQ%3D%3D&date_range_end=2026-03-31T23%3A59%3A59.000Z&date_range_start=2026-01-01T00%3A00%3A00.000Z&job_ids=%5B%22f47ac10b-58cc-4372-a567-0e02b2c3d479%22%5D&limit=30") .header("X-Beta", "true") .header("Authorization", "Bearer ") .asString(); ``` ```php request('GET', 'https://api.letsdeel.com/rest/ats/operation-history-logs?application_ids=%5B%22f47ac10b-58cc-4372-a567-0e02b2c3d479%22%5D&candidate_ids=%5B%22f47ac10b-58cc-4372-a567-0e02b2c3d479%22%5D&categories=%5B%22APPLICATION%22%2C%22OFFER%22%5D&created_by_hris_organization_user_ids=%5B%22f47ac10b-58cc-4372-a567-0e02b2c3d479%22%5D&cursor=eyJpZCI6IjEyMzQifQ%3D%3D&date_range_end=2026-03-31T23%3A59%3A59.000Z&date_range_start=2026-01-01T00%3A00%3A00.000Z&job_ids=%5B%22f47ac10b-58cc-4372-a567-0e02b2c3d479%22%5D&limit=30', [ 'headers' => [ 'Authorization' => 'Bearer ', 'X-Beta' => 'true', ], ]); echo $response->getBody(); ``` ```csharp using RestSharp; var client = new RestClient("https://api.letsdeel.com/rest/ats/operation-history-logs?application_ids=%5B%22f47ac10b-58cc-4372-a567-0e02b2c3d479%22%5D&candidate_ids=%5B%22f47ac10b-58cc-4372-a567-0e02b2c3d479%22%5D&categories=%5B%22APPLICATION%22%2C%22OFFER%22%5D&created_by_hris_organization_user_ids=%5B%22f47ac10b-58cc-4372-a567-0e02b2c3d479%22%5D&cursor=eyJpZCI6IjEyMzQifQ%3D%3D&date_range_end=2026-03-31T23%3A59%3A59.000Z&date_range_start=2026-01-01T00%3A00%3A00.000Z&job_ids=%5B%22f47ac10b-58cc-4372-a567-0e02b2c3d479%22%5D&limit=30"); var request = new RestRequest(Method.GET); request.AddHeader("X-Beta", "true"); request.AddHeader("Authorization", "Bearer "); IRestResponse response = client.Execute(request); ``` ```swift import Foundation let headers = [ "X-Beta": "true", "Authorization": "Bearer " ] let request = NSMutableURLRequest(url: NSURL(string: "https://api.letsdeel.com/rest/ats/operation-history-logs?application_ids=%5B%22f47ac10b-58cc-4372-a567-0e02b2c3d479%22%5D&candidate_ids=%5B%22f47ac10b-58cc-4372-a567-0e02b2c3d479%22%5D&categories=%5B%22APPLICATION%22%2C%22OFFER%22%5D&created_by_hris_organization_user_ids=%5B%22f47ac10b-58cc-4372-a567-0e02b2c3d479%22%5D&cursor=eyJpZCI6IjEyMzQifQ%3D%3D&date_range_end=2026-03-31T23%3A59%3A59.000Z&date_range_start=2026-01-01T00%3A00%3A00.000Z&job_ids=%5B%22f47ac10b-58cc-4372-a567-0e02b2c3d479%22%5D&limit=30")! as URL, cachePolicy: .useProtocolCachePolicy, timeoutInterval: 10.0) request.httpMethod = "GET" request.allHTTPHeaderFields = headers let session = URLSession.shared let dataTask = session.dataTask(with: request as URLRequest, completionHandler: { (data, response, error) -> Void in if (error != nil) { print(error as Any) } else { let httpResponse = response as? HTTPURLResponse print(httpResponse) } }) dataTask.resume() ```