**Registering a Workflow Type** To register a Workflow type with the AWS CLI, use the ``swf register-workflow-type`` command. :: aws swf register-workflow-type \ --domain DataFrobtzz \ --name "MySimpleWorkflow" \ --workflow-version "v1" If successful, the command produces no output. On an error (for example, if you try to register the same workflow typetwice, or specify a domain that doesn't exist) you will get a response in JSON. :: { "message": "WorkflowType=[name=MySimpleWorkflow, version=v1]", "__type": "com.amazonaws.swf.base.model#TypeAlreadyExistsFault" } The ``--domain``, ``--name`` and ``--workflow-version`` are required. You can also set the workflow description, timeouts, and child workflow policy. For more information, see `RegisterWorkflowType `__ in the *Amazon Simple Workflow Service API Reference*