---
title: "Get latest timeline events for credentialing workflows"
method: GET
path: "/credentialing-workflows/timeline-events/latest"
tags: ["CredentialingWorkflow"]
---

# Get latest timeline events for credentialing workflows

`GET /credentialing-workflows/timeline-events/latest`

Returns the most recent timeline event (by creation date) for each requested credentialing workflow ID, including data.changeReason when present. Accepts 1–10 workflow IDs. If a workflow has no timeline events, that ID is still included with an error message; other IDs are unaffected (partial success).

## Query parameters

- `workflowIds` unknown[], required
  - unknown

## Headers

- `tenant-id` string, required

## Response `200`

Successfully retrieved latest timeline events (may include per-ID error entries)

- GetLatestTimelineEventsResponse — Response containing the latest timeline event (or error) for each requested workflow ID
  - `results` LatestTimelineEventResult[] — Per-workflow latest timeline event results
    - `workflowId` string — Credentialing workflow ID
    - `timelineEvent` TimelineEventResponse — Response containing timeline event information
      - `id` string — Unique identifier for the timeline event
      - `workflowId` string — ID of the associated credentialing workflow
      - `data` TimelineEventData — Timeline event data containing event details. Field requirements vary by event name (see oneOf conditions in schema).
        - `name` 'NOT_STARTED' | 'IN_PROGRESS' | 'OUTREACH_IN_PROGRESS' | 'DATA_MISSING' | 'PSV_COMPLETED' | 'PSV_READY' | 'SENT_TO_COMMITTEE' | 'TABLED' | 'WITHDRAWN_CANCELLED' | 'CRED_DENIED' | 'CRED_APPROVED', required — Name of the timeline event. Must be one of the TimelineStatus enum values.
        - `changeReason` string — Reason for the change or status update. REQUIRED for: DATA_MISSING, WITHDRAWN_CANCELLED. Optional for: CRED_APPROVED, CRED_DENIED, and other statuses. Note: Whether this field is required or optional varies based on the permissions assigned to the user performing the action.
        - `credentialingDecisionDate` string, date
        - `nextCredentialingDate` string, date
        - `nextCredentialingDateSource` 'SYSTEM_CALCULATED' | 'USER_INPUT' — Indicates whether the next credentialing date was calculated by the system or entered by a user. Only applicable for CRED_APPROVED events.
        - `nextCredentialingDateChangeLog` NextCredentialingDateChangeLogEntry[] — Array to track changes to the next credentialing date. The nextCredentialingDate field should reflect the latest value from this array. Only applicable for CRED_APPROVED events.
          - `changedFrom` string, date, required
          - `changedTo` string, date, required
          - `changeReason` string, required — Reason for the change
          - `createdBy` string, required — User who made the change
          - `createdAt` string, date-time, required — Timestamp when the change was made
        - `psvPdfPath` string, uri-reference — URI reference to the PSV (Provider Summary Verification) PDF document.
        - `overrideReason` string, string — Indicates the reason for the override
        - `isOverride` boolean — Indicates if the timeline event is an override bypassing the default validations
      - `createdBy` string — ID of the user who created the timeline event
      - `updatedBy` string — ID of the user who last updated the timeline event
      - `createdAt` string, date-time
      - `updatedAt` string, date-time
    - `errorMessage` string — Error message when the latest timeline event is missing or unavailable

## Other responses

- `400` — Invalid request parameters (empty, blank, or more than 10 unique workflowIds)
- `401` — Unauthorized - Authentication required
- `403` — Forbidden - User does not have required permissions
- `404` — Not Found - One or more workflows not found or not owned by the tenant
- `500` — Internal Server Error - An unexpected error occurred

---

[API](https://skmtc.net/certifyos/apis/certify-api-layer.md) · [All operations](https://skmtc.net/certifyos/apis/certify-api-layer/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/certifyos/certify-api-layer/revisions/563848e0ecc0/schema)