---
title: "Update Edge Tolerance"
method: PATCH
path: "/api/v1/edge-tolerances/{tolerance_id}"
tags: ["edge_tolerances"]
---

# Update Edge Tolerance

`PATCH /api/v1/edge-tolerances/{tolerance_id}`

Patch a tolerance's type / size / angle / notes.

## Path parameters

- `tolerance_id` string, uuid, required

## Request body

- EdgeToleranceUpdate — Payload for ``PATCH /edge-tolerances/{tolerance_id}``. All fields optional.
  - `tolerance_type` string, nullable
  - `size_mm` number, nullable
  - `angle_deg` number, nullable
  - `notes` string, nullable

## Response `200`

Successful Response

- EdgeToleranceRead — Flattened edge-tolerance row — built by the service from an OutcomeEvent. Not an ORM passthrough: the source row is an ``OutcomeEvent`` with ``data = {tolerance_type, size_mm, angle_deg, notes, ...}``. The projection flattens that payload + adds the computed ``is_process_mismatch`` flag and the resolved visual label.
  - `id` string, uuid, required
  - `part_id` string, uuid, required
  - `cad_file_version_id` string, uuid, nullable, required
  - `edge_id` string, required
  - `tolerance_type` string, required
  - `size_mm` number, nullable, required
  - `angle_deg` number, nullable, required
  - `notes` string, nullable, required
  - `label` string, required
  - `state` string, required
  - `source` string, required
  - `author` string, nullable, required
  - `created_by` string, uuid, nullable, required
  - `created_at` string, date-time, required
  - `updated_at` string, date-time, nullable, required
  - `is_process_mismatch` boolean

## Other responses

- `422` — Validation Error

---

[API](https://skmtc.dev/prototyping/apis/prototyping-io-api.md) · [All operations](https://skmtc.dev/prototyping/apis/prototyping-io-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/prototyping/prototyping-io-api/revisions/f4a0079fbb57/schema)