eval {
    $result = rpm_req(
        'CustomerAdd', '
    "Customer": {
        "Name": "' . $customer{'name'} . '",
        "Website": "' . $customer{'website'} . '",
        "Address": "' . $customer{'address'} . '",
        "City": "' . $customer{'city'} . '",
        "StateProvince": "' . $customer{'stateprovince'} . '",
        "Country": "United States",
        "ZipPostalCode": "' . $customer{'zippostalcode'} . '",
        "PrimaryContact": {
            "Salutation": "' . $customer{'salutation'} . '",
            "FirstName": "' . $customer{'first name'} . '",
            "LastName": "' . $customer{'last name'} . '",
            "Title": "' . $customer{'title'} . '",
            "Email": "' . $customer{'email'} . '",
            "PhoneBusiness": { "Number":"' . $customer{'phone'} . '"}
        }
        ' . $customer_fields . '
    }
'
    );

} or warn $@;