Updating fluent form form field after form submission

Hello @moaz02,

You can modify the submitted entry upon submission using the insert_response_data hook. Please check out this documentation for comprehensive guidance: https://developers.fluentforms.com/hooks/filters/?#fluentform_insert_response_data. I have attached an example below,

add_filter('fluentform/insert_response_data', function ($formData, $formId, $inputConfigs) {
if ($formId !== 44) {
return $formData;
}
$formData["hidden"] = "Modified " . $formData["hidden"];
return $formData;
}, 10, 3);

Hope this helps.

Thank you.