This method closes the offering and cannot be invoked until all trade statuses are one of the following: Funded, Canceled or Unwind Settled. The offering can only be closed once all funding activity has been completed. Please note that this does NOT update trade statuses to "Settled."
TransactAPI Client ID
TransactAPI Developer Key
Offering ID that is generated by the API when an Offering is created (createOffering) of the offering that is to be closed.