If an error occurs when a call is made, a standard XML response will occur. This is an example of a XML error return:
<?xml
version="1.0"?>
<methodResponse>
<fault>
<value>
<struct>
<member>
<name>faultCode</name>
<value><int>13</int></value>
</member>
<member>
<name>faultString</name>
<value><string>Already at first
record</string></value>
</member>
</struct>
</value>
</fault>
</methodResponse>