---
title: "Deprecation: #93899 - FormEngine's requestConfirmationOnFieldChange"
manual: "TYPO3 Core Changelog"
version: "main"
permalink: "https://docs.typo3.org/permalink/changelog:deprecation-93899"
source: "Changelog/11.2/Deprecation-93899-FormEnginesRequestConfirmationOnFieldChange.rst"
typo3-version: "11.2"
typo3-major: 11
type: "deprecation"
issue: 93899
forge: "https://forge.typo3.org/issues/93899"
tags: ["Backend", "JavaScript", "NotScanned", "ext:backend"]
rendered: "2026-09-20T18:31:11+00:00"
---

# Deprecation: #93899 - FormEngine's requestConfirmationOnFieldChange {#deprecation-93899}

See [forge#93899](https://forge.typo3.org/issues/93899)

## Description {#description}

FormEngine's JavaScript method `FormEngine.requestConfirmationOnFieldChange()`
to register and trigger the update request when a field's value changes, has
been marked as deprecated.

## Impact {#impact}

Calling the method `FormEngine.requestConfirmationOnFieldChange()` will
trigger a deprecation warning in the browser's console.

## Affected Installations {#affected-installations}

Any 3rd party extension using the aforementioned method is affected.

## Migration {#migration}

There is no migration available. If a field is properly configured to update the
FormEngine after updating a field, a LitElement is rendered into DOM which will
handle the update request.