Certain attributes such as the list of operations and endpoints cannot be specified manually. To set these attributes, you must attach the WSDL file to the Virtual SOAP API. If you have not specified the WSDL file using the Import a File field in the Create New Asset page, you can use the Attach action in the API's actions bar to upload an input WSDL file. The Attach Document operation allows CentraSite to automatically populate the applicable SOAP operations and endpoints for the Virtual SOAP API.