---
title: "Breaking: #107518 - Removed \"initializeFormElement\" hook"
manual: "TYPO3 Core Changelog"
version: "main"
permalink: "https://docs.typo3.org/permalink/changelog:breaking-107518-1758539663"
source: "Changelog/14.0/Breaking-107518-RemovedInitializeFormElementHook.rst"
typo3-version: "14.0"
typo3-major: 14
type: "breaking"
issue: 107518
forge: "https://forge.typo3.org/issues/107518"
tags: ["Backend", "ext:form", "FullyScanned"]
rendered: "2026-09-28T19:48:07+00:00"
---

# Breaking: #107518 - Removed "initializeFormElement" hook {#breaking-107518-1758539663}

See [forge#107518](https://forge.typo3.org/issues/107518)

## Description {#description}

The hook
`$GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['ext/form']['initializeFormElement']`
has been removed in favor of the PSR-14 event
`\TYPO3\CMS\Form\Event\BeforeRenderableIsAddedToFormEvent`.

## Impact {#impact}

Hook implementations registered under
`initializeFormElement` are no longer executed in TYPO3 v14.0 and later.

## Affected installations {#affected-installations}

TYPO3 installations with custom extensions using this hook are affected.
The extension scanner reports any usage as a weak match.

## Migration {#migration}

The hook was removed without a deprecation phase to allow extensions to work
with both TYPO3 v13 (using the hook) and TYPO3 v14+ (using the new event)
simultaneously.

Use the [PSR-14 event](https://docs.typo3.org/permalink/changelog:feature-107518-1758539757) instead to influence
form element initialization. Since the event is dispatched at a later point,
it allows more extensive modifications than the previous hook.