vc_templates_delete_templates

Fires when a template deletion is requested for a non-default template type. This hook allows third-party code to handle deletion of custom template types that are not stored in the built-in options table.

Parameters

Parameter	Type	Description
$template_id	string	The ID of the template being deleted.
$template_type	string	The type of template being deleted.

Usage

add_action( 'vc_templates_delete_templates', 'wpb_delete_custom_template', 10, 2 );

function wpb_delete_custom_template( $template_id, $template_type ) {
    if ( 'my_custom_type' === $template_type ) {
        // Handle deletion for custom template type
        delete_post_meta( $template_id, '_my_custom_template_data' );
        wp_send_json_success();
    }
}

Source

File: include/classes/editors/popups/class-vc-templates-panel-editor.php