I'm trying to test out my connection to the SData portion of my installation of Sage 100 ERP. When I test it using the C# Client helper way of adding an SData Reference in my VS project using a url to the schema file (ex: http://[server name]/sdata/MasApp/MasContract/[company name]/AR_Customer/$schema) or testing the URL in SOAPUI with a GET request (ex:  www.example.com/.../accounts) I get the same 401 - Unauthorized error message. For the first attempt, I don't get a pop up window asking for user credentials so I'm not sure what credentials it's using and for the second one I'm not sure where I would put the user credentials in the GET request. Any help would be greatly appreciated. Just trying to do some integration development with Sage 100 ERP and a third party application.