This page covers Jitterbit variables that are available for the NetSuite connector. They do not apply to NetSuite endpoints configured outside of the NetSuite connector, such as by using the SOAP or HTTP connectors.
This Jitterbit variable is available to set (write):
Set to true for API calls to NetSuite to run asynchronously. That is, after a request is made, the connection is kept open and Jitterbit Harmony will periodically poll to see if the request is finished.