Siebel Portal Framework Guide > Delivering Content to External Web Applications > XML Response Structure >
XML Error Response
If a command block contains an error or is unsuccessful, then the specified action is not executed. Instead, the Siebel Business Applications XML user interface retains its current state and the SWE returns an error. Based on the markup format that you have specified, an error response is returned as XML, HTML, or WML.
An XML error response contains an
<ERROR> tag within the payload. Descriptive text for the error is enclosed between the open and close