Title: customize_save_validation_before
Published: August 16, 2016
Last modified: February 24, 2026

---

# do_action( ‘customize_save_validation_before’, WP_Customize_Manager $manager )

## In this article

 * [Description](https://developer.wordpress.org/reference/hooks/customize_save_validation_before/?output_format=md#description)
 * [Parameters](https://developer.wordpress.org/reference/hooks/customize_save_validation_before/?output_format=md#parameters)
 * [Source](https://developer.wordpress.org/reference/hooks/customize_save_validation_before/?output_format=md#source)
 * [Related](https://developer.wordpress.org/reference/hooks/customize_save_validation_before/?output_format=md#related)
 * [Changelog](https://developer.wordpress.org/reference/hooks/customize_save_validation_before/?output_format=md#changelog)

[ Back to top](https://developer.wordpress.org/reference/hooks/customize_save_validation_before/?output_format=md#wp--skip-link--target)

Fires before save validation happens.

## 󠀁[Description](https://developer.wordpress.org/reference/hooks/customize_save_validation_before/?output_format=md#description)󠁿

Plugins can add just-in-time ‘customize_validate_{$this->ID’} filters at this point
to catch any settings registered after `customize_register`.
The dynamic portion
of the hook name, `$this->ID` refers to the setting ID.

## 󠀁[Parameters](https://developer.wordpress.org/reference/hooks/customize_save_validation_before/?output_format=md#parameters)󠁿

 `$manager`[WP_Customize_Manager](https://developer.wordpress.org/reference/classes/wp_customize_manager/)

[WP_Customize_Manager](https://developer.wordpress.org/reference/classes/wp_customize_manager/)
instance.

## 󠀁[Source](https://developer.wordpress.org/reference/hooks/customize_save_validation_before/?output_format=md#source)󠁿

    ```php
    do_action( 'customize_save_validation_before', $this );
    ```

[View all references](https://developer.wordpress.org/reference/files/wp-includes/class-wp-customize-manager.php/)
[View on Trac](https://core.trac.wordpress.org/browser/tags/6.9.4/src/wp-includes/class-wp-customize-manager.php#L2780)
[View on GitHub](https://github.com/WordPress/wordpress-develop/blob/6.9.4/src/wp-includes/class-wp-customize-manager.php#L2780-L2780)

## 󠀁[Related](https://developer.wordpress.org/reference/hooks/customize_save_validation_before/?output_format=md#related)󠁿

| Used by | Description | 
| [WP_Customize_Manager::save_changeset_post()](https://developer.wordpress.org/reference/classes/wp_customize_manager/save_changeset_post/)`wp-includes/class-wp-customize-manager.php` |

Saves the post for the loaded changeset.

  |

## 󠀁[Changelog](https://developer.wordpress.org/reference/hooks/customize_save_validation_before/?output_format=md#changelog)󠁿

| Version | Description | 
| [4.6.0](https://developer.wordpress.org/reference/since/4.6.0/) | Introduced. |

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