<?php

function em_validate( $result, $EM_Object ){
 if ( isset($_REQUEST['data_privacy_consent'] ) || isset($_REQUEST['name="data_comms_consent"'] ) ){
   $result = true;
 } else {
   $EM_Object->errors = array(); 
   $EM_Object->add_error( get_option('dbem_data_privacy_consent_cpt_error') . '**' );	
   $result = false;
 }
 return $result;
}
add_action('em_event_validate', 'em_validate', 100, 2);