<CustomerFields_Update>
<Billing>Hidden</Billing>
<FirstName>Required</FirstName>
<LastName>Required</LastName>
<Email>Required</Email>
<Phone>Required</Phone>
<Fax>Hidden</Fax>
<Company>Optional</Company>
<Address>Required</Address>
<City>Required</City>
<State>Required</State>
<Zip>Required</Zip>
<Country>Hidden</Country>
</CustomerFields_Update>