AWS SDK for .NET Documentation
Reason Property
Amazon ► Amazon.SimpleWorkflow.Model ► TerminateWorkflowExecutionRequest ► Reason Did this page help you?   Yes   No    Tell us about it...
An optional descriptive reason for terminating the workflow execution.

Constraints:

Length
0 - 256

Declaration Syntax
C#
public string Reason { get; set; }

Assembly: AWSSDK (Module: AWSSDK) Version: 1.5.60.0 (1.5.60.0)