Error message handling in tax and address services results.
The generic format for error messages in output objects is shown below. Errors are returned in the Message class.
Summary: string [int MAX_VALUE] The message summary in short form.
Details: string [int MAX_VALUE] Description of the error or warning.
RefersTo: string [int MAX_VALUE] The data used during the request that caused the message to be generated.
Severity: enum as string [see below] Classifies severity of message. One of:
Source: string [int MAX_VALUE] The internal location that generated the message.