}
     }
 }
 /*
 	Verify Data
 */
 // check that the specified customer actually exists
 if (!$obj_customer->verify_id()) {
     log_write("error", "process", "The customer you have attempted to edit - " . $obj_customer->id . " - does not exist in this system.");
 } else {
     if ($obj_customer->id_service_customer) {
         // are we editing an existing service? make sure it exists and belongs to this customer
         if (!$obj_customer->verify_id_service_customer()) {
             log_write("error", "process", "The service you have attempted to edit - " . $obj_customer->id_service_customer . " - does not exist in this system.");
         } else {
             $obj_customer->load_data();
             $obj_customer->load_data_service();
         }
     }
 }
 // verify the service ID is valid
 if (!$obj_customer->id_service_customer) {
     $obj_customer->obj_service->id = $data["serviceid"];
     if (!$obj_customer->obj_service->verify_id()) {
         log_write("error", "process", "Unable to find service " . $obj_customer->obj_service->id . "");
     } else {
         $obj_customer->obj_service->load_data();
     }
 }
 // make sure the last period date is no earlier than the last current service period
 if (!empty($data["date_period_last"]) && $data["date_period_last"] != "0000-00-00") {