---
title: "Deprecation: #85123 - Constants related to Services"
manual: "TYPO3 Core Changelog"
version: "main"
permalink: "https://docs.typo3.org/permalink/changelog:deprecation-85123"
source: "Changelog/9.3/Deprecation-85123-ConstantsRelatedToServices.rst"
typo3-version: "9.3"
typo3-major: 9
type: "deprecation"
issue: 85123
forge: "https://forge.typo3.org/issues/85123"
tags: ["PHP-API", "FullyScanned"]
rendered: "2026-09-20T18:31:11+00:00"
---

# Deprecation: #85123 - Constants related to Services {#deprecation-85123}

See [forge#85123](https://forge.typo3.org/issues/85123)

## Description {#description}

The following constants have been marked as deprecated, and will be removed in TYPO3 v10.0.

-   `T3_ERR_SV_GENERAL`
-   `T3_ERR_SV_NOT_AVAIL`
-   `T3_ERR_SV_WRONG_SUBTYPE`
-   `T3_ERR_SV_NO_INPUT`
-   `T3_ERR_SV_FILE_NOT_FOUND`
-   `T3_ERR_SV_FILE_READ`
-   `T3_ERR_SV_FILE_WRITE`
-   `T3_ERR_SV_PROG_NOT_FOUND`
-   `T3_ERR_SV_PROG_FAILED`

The according constants have been moved to class constants of `\TYPO3\CMS\Core\Service\AbstractService`.

## Impact {#impact}

These constants will not trigger a deprecation warning, however they will result in a fatal error in TYPO3 v10.0.

## Affected Installations {#affected-installations}

TYPO3 Installations with extensions using these constants or having custom services using these constants.

## Migration {#migration}

Use the class constants provided within `\TYPO3\CMS\Core\Service\AbstractService`.