Get Oauth2 token

Hello,

I am trying to use soapUI to create a load test for my restful micro-service.  The services use Oauth2 tokens for security.  When I add a new request to request and attempt to automate the token retrieval using the "Auth" tab at the bottom of the screen, I receive the error "Could not retrieve access token.  Check the SoapUI log for details.

I dutifully checked the SoapUI log and see these entries (see the actual screen capture in the attachment):

• Attempt 1 to execute request
• Sending request: POST /oauth/token HTTP/1.1
• Receiving response: HTTP/1.1 401 Unauthorized
• Connection can be kept alive indefinitely
• Target requested authentication
• Authorization challenge processed
• Authentication scope: BASIC 'UAA/client'@sso.login.<rest of the domain>:8080
• Credentials not found

Using Postman, I can send a POST http://sso.login.<rest of the domain>/oauth/token?grant_type=client_credentials with basic authorization using the same Client Id and Client Secret as I entered in SoapUI and get a token.

Any ideas on how I can configure SoapUI to return a token like Postman?  SoapUI is way more sophisticated than Postman and I would like to leverage that in the testing of my micro-services.