---
title: "Important: #67248 - Clean up DataMapper::convertClassNameToTableName"
manual: "TYPO3 Core Changelog"
version: "main"
permalink: "https://docs.typo3.org/permalink/changelog:important-67248"
source: "Changelog/7.3/Important-67248-CleanUpDataMapperconvertClassNameToTableName.rst"
modified: "2026-09-14T09:47:36+00:00"
---

# Important: #67248 - Clean up DataMapper::convertClassNameToTableName

See [forge#67248](https://forge.typo3.org/issues/67248)

## Description

As a side-effect of cleaning up `DataMapper::convertClassNameToTableName` the argument `$className` is now mandatory.