Sets a unique, case-sensitive identifier you provide
to ensure idempotency of your listings.

C# |
[ObsoleteAttribute("The With methods are obsolete and will be removed in version 2 of the AWS SDK for .NET. See http://aws.amazon.com/sdkfornet/#version2 for more information.")] public CreateReservedInstancesListingRequest WithClientToken( string clientToken )

- clientToken (String)
- Identifier

this instance

This helps avoid duplicate listings. For more information, see
'Ensuring Idempotency' in the Amazon Elastic Compute Cloud User Guide.