---
title: "Preview Reset App from Template Impact"
method: POST
path: "/api/clusters/{clusterName}/apps/{appName}/settings/actions/reset-from-template/preview"
tags: ["Apps"]
---

# Preview Reset App from Template Impact

`POST /api/clusters/{clusterName}/apps/{appName}/settings/actions/reset-from-template/preview`

Previews template-owned field changes that would be applied by reset-from-template.

## Path parameters

- `clusterName` string, required
- `appName` string, required

## Headers

- `Authorization` string, required

## Response `200`

OK

- ServerAppTemplateResetPreview
  - `changeCount` integer
  - `changes` ServerAppTemplateFieldChange[]
    - `field` string
    - `new` string
    - `old` string
  - `forceRefresh` boolean
  - `templateName` string

## Other responses

- `403` — No valid ACL
- `500` — Server Not Found" or "No cluster

## Changes

- **2026-07-17** `7465ea0ee21a` — 1 info
  - endpoint added
- **2023-03-31** `b57fc7b9446e` — 1 breaking
  - api path removed without deprecation

[Change history](https://skmtc.dev/signal18/apis/untitled-api/changes/api/clusters/:clusterName/apps/:appName/settings/actions/reset-from-template/preview/post.md)

---

[API](https://skmtc.dev/signal18/apis/untitled-api.md) · [All operations](https://skmtc.dev/signal18/apis/untitled-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/signal18/untitled-api/revisions/ee076c6fc8dc/schema)