Select NCSA Basic if the external application requires username and password values sent in plain text in the request header.
Leave this value blank in either of the following cases:
- The external application has no authentication requirements.
- The external application uses form-based authentication and thus requires authentication arguments sent in the header or body of the request. Arguments to be sent along in the request are defined using the Symbolic URL Arguments applet. See Defining Symbolic URLs for more information.