Profile: patrikK-2

add_filter('cred_filter_field_before_add_to_form', 'required_fields_func', 10, 1);
function required_fields_func($field){
    if(in_array($field['id'], array('gdpr-acceptance'))){
        $field['data']['validate']['required'] = array (
            'active' => 1,
            'message' => 'This field is required'
        );
    }
    return $field;
}