---
title: "TYPO3 Exception 1481647089"
manual: "TYPO3 Exceptions"
version: "main"
permalink: "https://docs.typo3.org/permalink/t3exceptions:typo3-exception-1481647089"
source: "Exceptions/1481647089.rst"
modified: "2026-09-16T07:39:08+00:00"
---

# TYPO3 Exception 1481647089

> [!NOTE]
> Below, the TYPO3 community may have provided additional information or
> solutions for this exception. However, these may or may not apply to your
> particular case. If you can provide more information, you should come back
> here and add your experience and solution steps to this issue once you have
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>
> General TYPO3 troubleshooting tips can be found in the *Troubleshooting*
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>
> To add your experience, click "Edit on GitHub" above and follow the
> ["Edit on GitHub" workflow](https://docs.typo3.org/m/typo3/docs-how-to-document/main/en-us/Howto/EditOnGithub.html#docs-contribute-github-method).
> Also check out
> [our tip on Coding Style and reST](https://docs.typo3.org/permalink/t3exceptions:tip-about-rest-coding-style).

## Nesting select and group elements in flex form sections is not allowed with MM relations

```
#1481647089: Invalid flex form data structure on field name "pi_flexform"
with element "foo" in section container "content": Nesting select and group
elements in flex form sections is not allowed with MM relations.

```

Happens on TYPO3 v8 when using a multiRelation field inside a section
container

This [also happens with flux
8](https://github.com/FluidTYPO3/flux/issues/1446) when using a
\<flux:field.relation> tag. This has [been fixed in flux
9.0.0](https://github.com/FluidTYPO3/flux/issues/1446).