create_customer.xml

<?xml version="1.0"?>
<customer>
  <name>ABC Company</name>
  <service_address>123 First St</service_address>
  <service_city>Fudge</service_city>
  <service_state>CA</service_state>
  <service_zip_code>55555</service_zip_code>
  <primary_contact_attributes>
    <first_name>John</first_name>
    <last_name>Doe</last_name>
    <phone1>555-1234</phone1>
    <phone1_type>work</phone1_type>
    <email1>[email protected]</email1>
    <primary>true</primary>
  </primary_contact_attributes>
</customer>