---
title: "POST /api/relations/{relationNote}/reduce-to-source-property"
method: POST
path: "/api/relations/{relationNote}/reduce-to-source-property"
tags: ["relation-controller"]
---

# POST /api/relations/{relationNote}/reduce-to-source-property

`POST /api/relations/{relationNote}/reduce-to-source-property`

## Path parameters

- `relationNote` integer, required

## Response `200`

OK

## Changes

- **2026-09-27** `482412c3c1b0` — 4 breaking, 2 warning
  - the `ancestorFolders/items/name` response property's maxLength was unset from `512` for the response status `200`
  - the `ancestorFolders/items/name` response property's minLength was decreased from `1` to `0` for the response status `200`
  - removed the required property `ancestorFolders/items/createdAt` from the response with the `200` status
  - removed the required property `ancestorFolders/items/updatedAt` from the response with the `200` status
  - …2 more
- **2026-09-17** `4a0573434c07` — 1 info
  - endpoint added

[Change history](https://skmtc.dev/nerds-odd-e/apis/openapi-definition/changes/api/relations/:relationNote/reduce-to-source-property/post.md)

---

[API](https://skmtc.dev/nerds-odd-e/apis/openapi-definition.md) · [All operations](https://skmtc.dev/nerds-odd-e/apis/openapi-definition/llms.txt) · [OpenAPI document](https://skmtc.dev/nerds-odd-e/apis/openapi-definition/revisions/fe7a0e7aa49d?raw)