Issue with gform_field_value_ hook for hidden field

[thrijith13 (Thrijith Thankachan)]

Hello folks,

I am facing an issue with populating hidden field using the hook gform_field_value_ but it doesn’t work and value is empty

This is the field

On frontend, the field is empty

CleanShot 2024-08-28 at 14.52.55

The hook is setup like

add_filter( 'gform_field_value_submission_id', [ $this, 'gf_parameter_submission_id' ] );

public function gf_parameter_submission_id( string $value ): string {
	$task_id = (int) get_query_var( 'task_id' );

	if ( ! $task_id ) {
		return $value;
	}

	$task = get_task( $task_id );

	if ( $task && $task['entry_id'] ) {
		return $task['entry_id'];
	}

	return $value;
}

I am getting the entry_id value, it can be seen in the logs but for some reason it doesn’t fill the hidden field

[richardw8k (Richard Wawrzyniak (Gravity Forms))]

Is the site using a caching or optimization plugin or service? If the page where the form is embedded is cached, that will prevent dynamic population and default values from functioning correctly. We recommend excluding pages that include forms from caching/optimization.

[thrijith13 (Thrijith Thankachan)]

Hi, the screenshot is from a local site, it doesn’t have cache setup, I tried adding query params to bust cache if that was the case but it didn’t help.