protected function _setEmosBillingArray($sBillingId = "", $sCustomerNumber = "", $iTotal = 0, $sCountry = "", $sCip = "", $sCity = "")
    {
        /******************* prepare data *************************************/
        /* md5 the customer id to fullfill requirements of german datenschutzgeesetz */
        $sCustomerNumber = md5($sCustomerNumber);

        $sCountry = $this->_emos_DataFormat($sCountry);
        $sCip = $this->_emos_DataFormat($sCip) ;
        $sCity = $this->_emos_DataFormat($sCity);

        /* get a / separated location stzring for later drilldown */
        $ort = "";
        if ($sCountry) {
            $ort .= "$sCountry/";
        }

        if ($sCip) {
            $ort .= getStr()->substr($sCip, 0, 1)."/".getStr()->substr($sCip, 0, 2)."/";
        }

        if ($sCity) {
            $ort .= "$sCity/";
        }

        if ($sCip) {
            $ort.=$sCip;
        }

        $this->_billing = [$sBillingId, $sCustomerNumber, $ort, $iTotal];
    }