---
title: "Discover authorized cases through process, session and Laufkarten identifiers"
method: POST
path: "/api/domain-router/cases/:caseId/related-sessions/discover"
tags: ["Domain Router"]
---

# Discover authorized cases through process, session and Laufkarten identifiers

`POST /api/domain-router/cases/:caseId/related-sessions/discover`

## Request

- Base URL: `https://api.cernion.de`
- URL: `https://api.cernion.de/api/domain-router/cases/:caseId/related-sessions/discover`
- Auth: none declared

Authenticated tenant, actor, energy role and sensitivity policy required. Advisory only. Local PouchDB case/event metadata; no operational execution. See docs/domain-router.md.

## Path parameters

- `caseId` string, required

## Query parameters

- `token` string

## Request body

- object
  - `cetCaseId` string
  - `clientId` string
  - `targetCaseId` string
  - `token` string: Optional Cernion MCP token for this request. Overrides CERNION_TOKEN when provided.

## Response `200`

Advisory routing or policy-filtered case metadata

- object

## Other responses

- `403`: Tenant, role or sensitivity denied
- `409`: Stale case revision; reload and retry
- `422`: Invalid task or forced receipt

---

[API](https://skmtc.dev/cernion/apis/cernion-energy-tools-api.md) · [All operations](https://skmtc.dev/cernion/apis/cernion-energy-tools-api/llms.txt) · [OpenAPI document](https://skmtc.dev/cernion/apis/cernion-energy-tools-api/revisions/cdb94473b538?raw)